{"title":"Renal Function Markers","description":null,"products":[{"product_id":"quantichrom-urea-assay-kit-100t-bht15600074","title":"QuantiChrom™ Urea Assay Kit (100T)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of urea and evaluation of drug effects on urea metabolism. The assay uses OD520nm (Chemical) for signal readout. Compatible sample input includes Serum, plasma, urine, milk, cell\/tissue culture, bronchoalveolar lavage (BAL), food, beverage, and environment. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD520nm (Chemical) supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, milk, cell\/tissue culture, bronchoalveolar lavage (BAL), food, beverage, and environment, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.08 mg\/dL (13 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use 5 µL samples. Linear detection range 0.08 mg\/dL (13 µM) to 100 mg\/dL (17 mM) urea in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 20 min. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of urea (100t) within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e Urea \u003c\/i\u003eis primarily produced in the liver and secreted by the kidneys. Urea is the major end product of protein catabolism in animals. It is the primary vehicle for the removal of toxic ammonia from the body. Urea determination is very useful for the medical clinician to assess the kidney function of patients. In general, increased urea levels are associated with nephritis, renal ischemia, urinary tract obstruction, and certain extrarenal diseases, e.g., congestive heart failure, liver diseases, and diabetes. Decreased levels indicate acute hepatic insufficiency or may result from over-vigorous parenteral fluid therapy. Simple, direct, and automation-ready procedures for measuring urea concentration or blood urea nitrogen BUN in biological samples are becoming popular in Research and Drug Discovery. BioAssay Systems urea assay kit is designed to measure urea directly in biological samples without any pretreatment. The improved Jung method utilizes a chromogenic reagent that forms a colored complex specifically with urea. The intensity of the color, measured at 520nm, is directly proportional to the urea concentration in the sample. The optimized formulation substantially reduces interference by substances in the raw samples.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 520 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.08 mg\/dL (13 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify urea (100t) in serum, plasma, urine by OD520 nm (Chemical) readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, plasma, urine handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, plasma, urine across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238312665453,"sku":"DIUR-100","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIURfig.jpg?v=1776668350"},{"product_id":"quantichrom-iron-assay-kit-bht15600063","title":"QuantiChrom™ Iron Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of iron ions Fe 3+ and\/or Fe 2+ and evaluation of drug effects on iron metabolism. The assay uses OD590nm for signal readout. Compatible sample input includes Biological (e.g. serum) and environmental samples. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD590nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological (e.g. serum) and environmental samples, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 27 µg\/dL (4.8 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Linear detection range 27 µg\/dL (4.8 µM) to 1,000 µg\/dL (179 µM) iron in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 40 min. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvette or 96-well plate assay. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of iron within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eIron level in blood is a reliable diagnostic indicator of various disease states. Increased levels of iron concentration in blood are associated with blood loss, increased destruction of red blood cells (e.g. hemorrhage) or decreased blood cell survival, acute hepatitis, certain sideroachrestic anemias, ingestion of iron-rich diets, defects in iron storage (e.g. pernicious anemia). Decreased levels of blood iron may result from insufficient iron ingestion from diets, chronic blood loss pathologies, or increased demand for iron storage during normal pregnancy. Simple, direct, and automation-ready procedures for measuring iron concentrations find wide applications in research, drug discovery, and environmental monitoring. BioAssay Systems iron assay kit is designed to measure total iron directly in serum without any pretreatment. The improved method utilizes a chromogen that forms a blue-colored complex specifically with Fe\u003csup\u003e2+\u003c\/sup\u003e. Fe\u003csup\u003e3+\u003c\/sup\u003ein the sample is reduced to Fe\u003csup\u003e2+\u003c\/sup\u003e, thus allowing the assay for total iron concentration. The intensity of the color, measured at 590nm, is directly proportional to the iron concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 590 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 27 µg\/dL (4.8 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify iron in biological (serum) by OD590 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological (serum) handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological (serum) across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238312730989,"sku":"DIFE-250","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIFEfig.jpg?v=1776668350"},{"product_id":"quantichrom-uric-acid-assay-kit-bht15600073","title":"QuantiChrom™ Uric Acid Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of uric acid and evaluation of drug effects on uric acid metabolism. The assay uses OD590nm for signal readout. Compatible sample input includes Serum, plasma, urine, and other biological samples. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD590nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, and other biological samples, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.2 mg\/dL (13 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use 5 µL samples. Linear detection range 0.22 mg\/dL (13 µM) to 30 mg\/dL (1785 µM) uric acid in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 30 min. Can be readily automated as a high-throughput assay in 96-well plates for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of uric acid within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e Uric acid \u003c\/i\u003eis the waste product produced from the degradation of purines. In healthy humans, uric acid is filtered and removed from the blood by the kidneys and excreted into urine. Because a number of kidney diseases are known to affect uric acid levels, uric acid determination is thus important and useful in diagnosing and evaluating kidney diseases. For example, when uric acid is present in the blood at abnormally high levels, it tends to crystallize in body joints, resulting in gout, a very painful inflammatory condition. Increased levels of uric acid are also known to be associated with uremia, leukemia, and pneumonia. Simple, direct, and automation-ready procedures for measuring uric acid concentration in blood are becoming popular in Research and Drug Discovery. BioAssay Systems’ uric acid assay kit is designed to measure uric acid directly in serum without any pretreatment. The improved method utilizes 2,4,6-tripyridyl-s-triazine which forms a blue-colored complex specifically with iron in the presence of uric acid. The intensity of the color, measured at 590nm, is directly proportional to the uric acid concentration in the serum. The optimized formulation substantially reduces interference by substances in the raw samples.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 590 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.2 mg\/dL (13 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify uric acid in serum, plasma, urine by OD590 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, plasma, urine handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, plasma, urine across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238312960365,"sku":"DIUA-250","price":509.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIUAfig.jpg?v=1776668353"},{"product_id":"quantichrom-calcium-assay-kit-bht15600055","title":"QuantiChrom™ Calcium Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of calcium ion Ca 2+ and evaluation of drug effects on calcium metabolism. The assay uses OD612nm for signal readout. Compatible sample input includes Biological, food, and environment. Typical stated assay timing is 3 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD612nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological, food, and environment, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.08 mg\/dL (20 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use as little as 5 µL samples. Linear detection range 0.08 mg\/dL (20 µM) to 20 mg\/dL (5 mM) Ca 2+ in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 3 min. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 500 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of calcium within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e CALCIUM\u003c\/i\u003eis measured to monitor diseases of bone or calcium regulation disorders. Increased calcium levels in serum are reported in hyperparathyroidism, metastatic bone lesions, and hypervitaminosis, while decreased levels are observed in hypoparathyroidism, nephrosis, rickets, steatorrhea, nephritis, and calcium-losing syndromes. Urinary calcium levels aid the clinician in understanding how the kidneys handle calcium in certain diseases of the parathyroid gland. Urinary calcium levels are also essential in the medical evaluation of kidney stones. Simple, direct, and automation-ready procedures for measuring calcium concentration in biological samples are becoming popular in Research and Drug Discovery. BioAssay Systems calcium assay kit is designed to measure calcium directly in biological samples without any pretreatment. A phenol sulphone phthalein dye in the kit forms a very stable blue-colored complex specifically with free calcium. The intensity of the color, measured at 612 nm, is directly proportional to the calcium concentration in the sample. The optimized formulation minimizes any interference by substances such as magnesium, lipid, protein, and bilirubin.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 612 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.08 mg\/dL (20 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 3 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify calcium in biological, food, and environment by OD612 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological, food, and environment handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological, food, and environment across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"500 Tests","offer_id":53238313189741,"sku":"DICA-500","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DICAfig.jpg?v=1776668348"},{"product_id":"quantichrom-copper-assay-kit-bht15600058","title":"QuantiChrom™ Copper Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of copper(II) ion and evaluation of drug effects on Cu metabolism. The assay uses OD359nm for signal readout. Compatible sample input includes Biological, environment, food, and beverage. Typical stated assay timing is 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD359nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological, environment, food, and beverage, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 7 µg\/dL (1.0 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Linear detection range 7 µg\/dL (1.0 µM) to 300 µg\/dL (47 µM) copper in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The simple procedure can be readily automated as a high-throughput assay in 96-well plates for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of copper within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eCopper is an essential trace element. Copper-containing enzymes play important roles in iron and catecholamine metabolism, free radical scavenging, and in the synthesis of hemoglobin, elastin, and collagen. Copper is mainly present in caeruloplasmin in the liver. Low levels of copper have been associated with mental retardation, depigmentation, anemia, hypotonia, and scorbutic changes in bone. Levels of copper are a key diagnostic indicator of diseases such as Wilson’s disease, microcytic hypochromic anemia, and bone disease due to reduced collagen synthesis. Simple, direct, and automation-ready procedures for measuring copper concentrations find wide applications in research, drug discovery, and environmental monitoring. BioAssay Systems copper assay kit is designed to measure copper with no or minimal sample treatment. The improved method utilizes a chromogen that forms a colored complex specifically with copper ions. The intensity of the color, measured at 359nm, is directly proportional to the copper concentration in the sample. The optimized formulation substantially reduces interference by substances in the raw samples.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 359 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 7 µg\/dL (1.0 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify copper in biological, environment, food, and beverage by OD359 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological, environment, food, and beverage handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological, environment, food, and beverage across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238313615725,"sku":"DICU-250","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DICUfig.jpg?v=1776668348"},{"product_id":"quantichrom-bcg-albumin-assay-kit-bht15600052","title":"QuantiChrom™ BCG Albumin Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of albumin and evaluation of drug effects on albumin metabolism. The assay uses OD620nm (BCG) for signal readout. Compatible sample input includes Serum, plasma, urine, biological preparations. Typical stated assay timing is 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD620nm (BCG) supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, biological preparations, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.01 g\/dL for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use as little as 5 µL samples. Detection range 0.01 – 5 g\/dL (1.5 – 750 µM) albumin in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 5 min. Can be readily automated as a high-throughput assay in 96-well plates for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of bcg albumin within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003eAlbumin\u003c\/i\u003eis the most abundant plasma protein in humans. It accounts for about 60% of the total serum protein. Albumin plays important physiological roles, including the maintenance of colloid osmotic pressure, and binding of key substances such as long-chain fatty acids, bile acids, bilirubin, haematin, calcium, and magnesium. It has anti-oxidant and anticoagulant effects, and also acts as a carrier for nutritional factors and drugs, as an effective plasma pH buffer. Serum albumin is a reliable prognostic indicator for morbidity and mortality, liver disease, nephritic syndrome, malnutrition, and protein-losing enteropathies. High levels are associated with dehydration. Simple, direct, and automation-ready procedures for measuring albumin concentration in biological samples are becoming popular in Research and Drug Discovery. BioAssay Systems BCG albumin assay kit is designed to measure albumin directly in biological samples without any pretreatment. The improved method utilizes bromcresol green that forms a colored complex specifically with albumin. The intensity of the color, measured at 620nm, is directly proportional to the albumin concentration in the sample. The optimized formulation substantially reduces interference by substances in the raw samples.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 620 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.01 g\/dL.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify bcg albumin in serum, plasma, urine, biological preparations by OD620 nm (BCG) readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, plasma, urine, biological preparations handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, plasma, urine, biological preparations across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238313648493,"sku":"DIAG-250","price":429.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIAGfig.jpg?v=1776668350"},{"product_id":"quantichrom-creatinine-assay-kit-bht15600057","title":"QuantiChrom™ Creatinine Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of creatinine and evaluation of drug effects on creatinine metabolism. The assay uses OD510nm for signal readout. Compatible sample input includes Urine, serum, plasma and biological preparations. Typical stated assay timing is 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD510nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Urine, serum, plasma and biological preparations, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.1 mg\/dL (8 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use 30 µL samples. The detection limit 0.10 mg\/dL (8 µM) creatinine in 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 5 min. Can be automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Assays can be executed in 96-well plate or cuvet. Available format information for this listing includes 500 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of creatinine within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e Creatinine\u003c\/i\u003eis synthesized in the body at a fairly constant rate from creatine, which is produced during muscle contractions from creatine phosphate. In the blood, creatinine is removed by filtration through the glomeruli of the kidney and is secreted into urine. In healthy individuals, creatinine secretion is independent of diet and is fairly constant. The creatinine clearance test has become one of the most sensitive tests for measuring glomerular filtration rate. In kidney disease, creatinine levels in the blood are elevated, whereas the creatinine clearance rate and hence the urine levels are diminished. Creatinine test is most widely used to assess kidney function. Simple, direct and automation-ready procedures for measuring creatinine concentration in biological samples are becoming popular in Research and Drug Discovery. BioAssay Systems creatinine assay kit is designed to measure creatinine directly in biological samples without any pretreatment. The improved Jaffe method utilizes picrate that forms a red colored complex with creatinine. The intensity of the color, measured at 510nm, is directly proportional to creatinine concentration in the sample. The optimized formulation substantially reduces interference by substances in the raw sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 510 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.1 mg\/dL (8 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify creatinine in urine, serum, plasma and biological by OD510 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched urine, serum, plasma and biological handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in urine, serum, plasma and biological across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"500 Tests","offer_id":53238313681261,"sku":"DICT-500","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DICTfig.jpg?v=1776668351"},{"product_id":"quantichrom-boron-assay-kit-bht15600028","title":"QuantiChrom™ Boron Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of boron in agricultural and environmental samples. The assay uses OD420nm for signal readout. Compatible sample input includes Water, plant tisse, soil samples, and antibody conjugation solutions. Typical stated assay timing is 40 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD420nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Water, plant tisse, soil samples, and antibody conjugation solutions, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.05 µg\/mL or 0.05 ppm for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range: 0.05 to 10 µg\/mL (0.05 – 10 ppm) boron with 100 µL sample (96-well).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. The procedure involves adding a single working reagent; High-throughput. “Add-mix-read” type assay. Can be readily automated as a high-throughput 96-well or 384-well plate assay for thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of boron within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eBORON\u003c\/em\u003eis an essential micronutrient in plants and is involved in maintaining robust cell walls, cell membranes, and reproductive tissues. Although boron is common in the soil in its natural state as a borate mineral, the amount of boron available to plants is actually quite small. As a result, boron deficiency is the second most common micronutrient deficiency among crop plants. In order to keep plant boron levels in a healthy range, supplementation to the soil via fertilizers and additives is often required. If not regulated, a lack of or excess of boron may significantly lower crop yield. In the biotech industry, sodium borohydride is commonly used to conjugate antibodies and typically needs to be removed from the final product, especially for therapeutic antibodies.BioAssay Systems’ boron detection kit provides a convenient and reliable means to measure boron. In the assay borate complexes with azomethine-H to create a colored compound that can be measured at 420 nm. This assay can be used with a variety of samples and is simple, sensitive, and adaptable to high-throughput screening.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 420 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.05 µg\/mL or 0.05 ppm.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 40 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify boron in water, plant tisse, soil samples by OD420 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched water, plant tisse, soil samples handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in water, plant tisse, soil samples across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238313812333,"sku":"DBOR-100","price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DBORfig.jpg?v=1776668350"},{"product_id":"quantichrom-chromium-assay-kit-bht15600031","title":"QuantiChrom™ Chromium Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of chromium Cr(VI). The assay uses OD480nm for signal readout. Compatible sample input includes Biological (serum, plasma etc), environmental (water, soil etc), food and beverage samples. Typical stated assay timing is 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD480nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological (serum, plasma etc), environmental (water, soil etc), food and beverage samples, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 20 µg\/L (0.38 µM, 0.02 ppm) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Linear detection range of 20 – 2000 µg\/L Chromium.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient and high-throughput. Homogeneous “mix-incubate-measure” type assay. No wash and reagent transfer steps are involved. Can be readily automated for processing thousands of samples per day. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of chromium within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eCHROMIUM is widely used in various industries such as electroplating, leather tanning, chrome paint, dying, hardened steel, ceramic and glass industry. Chromium exists in two stable oxidation states, hexavalent Cr(VI) and trivalent Cr(III). Cr(VI) is produced solely by industrial processes, whereas in nature, chromium exists in its trivalent form. Cr(III) is generally regarded as nontoxic due to poor absorption. Cr(VI) is considered a pulmonary carcinogen and has tested positive in genotoxicity tests. It is one of the most serious pollutants in many water streams due to its carcinogenic potential. Most countries apply a legal limit of 50-100 µg\/L Cr in drinking water. BioAssay Systems Chromium Assay Kit provides a simple one-step colorimetric means to directly measure Cr(VI) in a sample. In the assay, Cr(VI) forms a stable complex with a specific chromogenic dye. The optical density at 480nm is directly proportionate to the Cr(VI) concentration in the sample. Cr(III) can be converted to Cr(VI) with nitric acid\/hydrochloric acid, thus allowing the determination of Cr(III) or total Cr [Cr(III) + Cr(VI)] in the sample. The assay is sensitive with a detection limit of 20 µg\/L Cr.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 480 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 20 µg\/L (0.38 µM, 0.02 ppm).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify chromium in biological (serum, plasma) by OD480 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological (serum, plasma) handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological (serum, plasma) across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238313943405,"sku":"DCRM-250","price":519.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DCRMfig.jpg?v=1776668351"},{"product_id":"quantichrom-phosphate-assay-kit-bht15600072","title":"QuantiChrom™ Phosphate Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of phosphate and evaluation of drug effects on phosphate metabolism. The assay uses OD620nm (malachite green) for signal readout. Compatible sample input includes Serum, urine, saliva, sweat, tissue culture, food, environment, etc. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD620nm (malachite green) supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, urine, saliva, sweat, tissue culture, food, environment, etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 3 µg\/dL (0.3 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Linear detection range 0.3 µM (0.0028 mg\/dL) to 50 µM (0.47 mg\/dL) phosphate in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 30 min. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Assays can be executed in cuvet or 96-well plates. Available format information for this listing includes 500 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of phosphate within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003ePhosphate (Pi) is one of the most important ion species in nature. Phosphate is present in all biological systems. It is a major constituent in minerals and fertilizers and is a component of industrial wastewater. Thus the accurate determination of phosphate concentration finds numerous applications in pharmacology, biomedical research, clinical chemistry, industrial process monitoring, and environmental monitoring. Simple, direct, and automation-ready procedures for measuring phosphate concentration in biological and environmental samples are becoming popular. BioAssay Systems phosphate assay kit is designed to measure phosphate ions directly in samples without any pretreatment. The improved Malachite Green method utilizes the malachite green dye and molybdate, which forms a stable colored complex specifically with inorganic phosphate. The intensity of the color, measured at 620nm, is directly proportional to the phosphate concentration in the sample. The optimized formulation substantially reduces interference by substances in the raw samples.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 620 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 3 µg\/dL (0.3 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify phosphate in serum, urine, saliva by OD620 nm (malachite green) readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, urine, saliva handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, urine, saliva across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"500 Tests","offer_id":53238314140013,"sku":"DIPI-500","price":429.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIPIfig.jpg?v=1776668350"},{"product_id":"enzychrom-creatinine-assay-kit-bht15600104","title":"EnzyChrom™ Creatinine Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of creatinine and evaluation of drug effects on its metabolism. The assay uses OD570nm; FL530\/585nm for signal readout. Compatible sample input includes Urine, serum, plasma, and other biological preparations. Typical stated assay timing is 60 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD570nm; FL530\/585nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Urine, serum, plasma, and other biological preparations, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of Colorimetric assay: 4.8 µM or 0.054 mg\/dL; Fluorimetric assay: 0.25 µM or 0.0028 mg\/dL for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range: 4.8 to 500 µM or 0.054-5.7 mg\/dL (colorimetric assay) and 0.25 to 100 µM or 0.0028-1.14 mg\/dL (fluorimetric assay) for a 60 min reaction. It is 3- and 53-fold more sensitive than the traditional Jaffe method (e.g. DICT-500), especially useful for small samples or where high sensitivity is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. The procedure involves adding a single working reagent and reading after 60 minutes. Room temperature assay. No 37°C heater is needed; High-throughput. Homogeneous “mix-incubate-measure” type assay. Can be readily automated to process thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of creatinine within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eCREATININE\u003c\/em\u003eis synthesized in the body from creatine, which is produced during muscle contractions from creatine phosphate. In the blood, creatinine is removed by filtration through the glomeruli of the kidney and is secreted into urine. In healthy individuals, creatinine secretion is independent of diet and is fairly constant. The creatinine clearance test has become one of the most sensitive tests for measuring glomerular filtration rate. In kidney disease, creatinine levels in the blood are elevated, whereas the creatinine clearance rate and hence the urine levels are diminished. Creatinine testing is most widely used to assess kidney function. BioAssay Systems’ enzyme-based creatinine assay uses a reaction sequence that excludes endogenous ammonia to convert a dye into a colored and fluorescent form. The absorbance at 570 nm or fluorescence intensity at λ\u003csub\u003eex\/em\u003c\/sub\u003e= 530\/585 nm is directly proportional to the creatinine concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 570 nm) or Fluorescent (FL 530\/585 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit(s): Colorimetric: 4.8 µM \/ Fluorescent: 0.25 µM. Additional source wording: Colorimetric assay: 4.8 µM or 0.054 mg\/dL; Fluorimetric assay: 0.25 µM or 0.0028 mg\/dL.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 60 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify creatinine in urine, serum, plasma by OD570 nm; FL530\/585 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched urine, serum, plasma handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in urine, serum, plasma across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238314565997,"sku":"E2CT-100","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/E2CTfig.jpg?v=1776668352"},{"product_id":"quantichrom-cobalt-assay-kit-bht15600030","title":"QuantiChrom™ Cobalt Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eDirect Assays: cobalt in aqueous samples. The assay uses OD485nm for signal readout. Compatible sample input includes Aqueous samples. Typical stated assay timing is 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD485nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Aqueous samples, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 1.4µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Linear detection range from 1.4 µM to 200 µM cobalt ions in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent with immediate color development. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent stability. Cuvette or 96-well plate assay. Available format information for this listing includes 100 Tests in 96-well plate.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of cobalt within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eCobalt is an essential micronutrient for all multicellular organisms as the active center of cobalamin, such as vitamin B-12, which is essential for plants and animals. Cobalt is also a micronutrient for bacteria, algae, and fungi. Despite being an important micronutrient, excess cobalt in the environment can be deleterious to life leading to cardiomyopathy in humans and necrosis in plants.Simple, direct, and automation-ready procedures for measuring cobalt concentrations find wide applications in research and environmental monitoring. BioAssay Systems’ cobalt assay kit is designed to measure total cobalt directly in aqueous samples without any pretreatment. The intensity of the color, measured at 485nm, is directly proportional to the cobalt concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 485 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 1.4µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify cobalt in aqueous samples by OD485 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched aqueous samples handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in aqueous samples across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests in 96-well plate","offer_id":53238314631533,"sku":"DCBT-100","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DCBTfig.jpg?v=1776668351"},{"product_id":"quantifluo-ammonia-assay-kit-bht15600079","title":"QuantiFluo™ Ammonia Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of ammonia\/ammonium and evaluation of drug effects on their metabolism. The assay uses FL360\/450nm for signal readout. Compatible sample input includes Biological (eg urine) and environ-mental samples. Typical stated assay timing is 15 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e FL360\/450nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological (eg urine) and environ-mental samples, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 12 µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range of 0.012 – 1 mM ammonia.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient and high-throughput. Homogeneous “mix-incubate-measure” type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Available format information for this listing includes 200 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of ammonia within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eAMMONIA (NH 3 ) or its ion form ammonium (NH 4 + ) is an important source of nitrogen for living systems and is ubiquitously present in the nature. Simple, direct and automation-ready procedures for measuring NH 3 are very desirable. BioAssay Systems ammonia\/ammonium assay is based on an improved o-phthalaldehyde method. This reagent reacts with ammonia\/ ammonium and forms a fluorescent product. The fluorescence intensity (λex\/em = 360\/450nm) is proportional to the ammonia concentration in the sampl\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eFluorescent (FL 360\/450 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 12 µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 15 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify ammonia in biological (eg urine) by FL360\/450 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological (eg urine) handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological (eg urine) across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"200 Tests","offer_id":53238314991981,"sku":"DNH3-200","price":239.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DNH3fig.jpg?v=1776668351"},{"product_id":"quantichrom-glucose-6-phosphate-dehydrogenase-kit-bht15600049","title":"QuantiChrom™ Glucose-6-Phosphate Dehydrogenase Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative colorimetric determination of glucose-6-phosphate concentration and evaluation of drug effects on its metabolism. The assay uses OD565nm for signal readout. Compatible sample input includes Plasma, serum, tissue and culture media, etc. Typical stated assay timing is 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD565nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Plasma, serum, tissue and culture media, etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.2 U\/L for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range (20 µL sample): 0.2 to 100 U\/L for 15 min reaction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient and high-throughput. Homogeneous “mix-incubate-measure” type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of glucose-6-phosphate dehydrogenase within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e GLUCOSE-6-PHOSPHATE DEHYDROGENASE \u003c\/i\u003e(G6PDH) is a cytosolic enzyme in the pentose phosphate pathway which supplies reducing energy to cells by maintaining the level of the co-enzyme nicotinamide adenine dinucleotide phosphate (NADPH). G6PDH reduces nicotinamide adenine dinucleotide phosphate (NADP) to NADPH while oxidizing glucose-6-phosphate (G6P). Humans with a genetic deficiency of G6PDH are predisposed to non-immune hemolytic anemia. BioAssay Systems’ non-radioactive, colorimetric G6PDH assay is based on the reduction of the tetrazolium salt MTT in an NADPH-coupled enzymatic reaction to a reduced form of MTT which exhibits an absorption maximum at 565 nm. The increase in absorbance at 565 nm is proportional to the enzyme activity.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 565 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.2 U\/L.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify glucose-6-phosphate dehydrogenase in plasma, serum, tissue and culture media by OD565 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched plasma, serum, tissue and culture media handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in plasma, serum, tissue and culture media across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238315417965,"sku":"DGPDH-100","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DGPDHfig.jpg?v=1776668349"},{"product_id":"quantichrom-magnesium-assay-kit-bht15600069","title":"QuantiChrom™ Magnesium Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of Mg 2+ and evaluation of drug effects on magnesium metabolism. The assay uses OD500nm for signal readout. Compatible sample input includes Biological, food, and beverage. Typical stated assay timing is 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD500nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological, food, and beverage, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.1 mg\/dL (41 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use as little as a 5 µL sample. Linear detection range 0.1 mg\/dL (41 µM) to 3 mg\/dL (1.2 mM) Mg 2+ in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of two reagents and measuring OD500nm. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of magnesium within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eMagnesium (Mg) is one of the most abundant and essential minerals in mammals. Magnesium is involved in more than 300 biochemical reactions in the body and plays important roles in muscle and nerve functions, heart rhythm, immune system, and bone formation. Magnesium deficiency may lead to nausea, fatigue, muscle contractions, hypocalcemia, and hypokalemia. Simple, direct, and automation-ready procedures for measuring magnesium concentration in biological samples are becoming popular in Research and Drug Discovery. BioAssay Systems magnesium assay kit is designed to measure magnesium directly in biological samples without any pretreatment. A calmagite dye in the kit forms a colored complex specifically with magnesium. The intensity of the color, measured at 500 nm, is directly proportional to the magnesium concentration in the sample. The optimized formulation minimizes interference by potential substances.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 500 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.1 mg\/dL (41 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify magnesium in biological, food, and beverage by OD500 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological, food, and beverage handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological, food, and beverage across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238315942253,"sku":"DIMG-250","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIMGfig.jpg?v=1776668351"},{"product_id":"quantichrom-bcp-albumin-assay-kit-bht15600053","title":"QuantiChrom™ BCP Albumin Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of albumin and evaluation of drug effects on albumin metabolism. The assay uses OD610nm (BCP) for signal readout. Compatible sample input includes Serum, plasma, urine, biological preparations. Typical stated assay timing is 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD610nm (BCP) supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, biological preparations, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.3 g\/dL for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use as little as 20 µL samples. Detection range 0.3 – 5 g\/dL (45 – 750 µM) albumin in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 5 min. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of bcp albumin within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003eAlbumin\u003c\/i\u003eis the most abundant plasma protein in humans. It accounts for about 60% of the total serum protein. Albumin plays important physiological roles, including the maintenance of colloid osmotic pressure, and binding of key substances such as long-chain fatty acids, bile acids, bilirubin, haematin, calcium, and magnesium. It has anti-oxidant and anticoagulant effects, and also acts as a carrier for nutritional factors and drugs, as an effective plasma pH buffer. Serum albumin is a reliable prognostic indicator for morbidity and mortality, liver disease, nephritic syndrome, malnutrition, and protein-losing enteropathies. High levels are associated with dehydration. Simple, direct, and automation-ready procedures for measuring albumin concentration in biological samples are becoming popular in Research and Drug Discovery. BioAssay Systems BCP albumin assay kit is designed to measure albumin directly in biological samples without any pretreatment. The improved method utilizes bromcresol purple that forms a colored complex specifically with albumin. The intensity of the color, measured at 610nm, is directly proportional to the albumin concentration in the sample. The optimized formulation substantially reduces interference by substances in the raw samples.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 610 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.3 g\/dL.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify bcp albumin in serum, plasma, urine, biological preparations by OD610 nm (BCP) readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, plasma, urine, biological preparations handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, plasma, urine, biological preparations across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238316106093,"sku":"DIAP-250","price":419.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIAPfig.jpg?v=1776668347"},{"product_id":"quantichrom-protein-creatinine-ratio-assay-kit-bht15600080","title":"QuantiChrom™ Protein Creatinine Ratio Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of urinary protein and creatinine concentrations (protein\/creatinine ratio, UPCR). The assay uses OD600 and OD530nm for signal readout. Compatible sample input includes Urine samples. Typical stated assay timing is 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD600 and OD530nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Urine samples, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 1 mg\/dL Protein and 1 mg\/dL Creatinine for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use 20 µL samples. Linear detection range in 96-well plate: 1 – 20 mg\/dL Protein and 1 – 150 mg\/dL Creatinine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Fast and convenient. No sample pre-treatment is needed. Simple 10- minute “add-incubate-read” procedure; High-throughput adaptable. The procedure can be readily automated for processing thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of protein creatinine ratio within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003ePROTEIN\u003c\/i\u003eis filtered out of urine by the glomeruli of the kidneys. Albumin is the most common serum protein, thus the majority of the protein in urine is albumin. A damaged kidney will allow some protein through into the urine, the less protein in urine the better. Elevated protein levels in urine are called microalbuminuria or proteinuria, which typically arises due to type 1 diabetes, type 2 diabetes, or high blood pressure. CREATININE is synthesized in the body at a fairly constant rate from creatine. In healthy individuals, creatinine secretion is independent of diet and is fairly constant. The creatinine clearance test has become one of the most sensitive tests for measuring glomerular filtration rate. PROTEIN\/CREATININE RATIO (PCR) remains the simplest and most convenient test for proteinuria. Other methods such as 24-hour urine tests or timed urine tests require strict adherence to sample collection protocol. Since the protein concentration is normalized to creatinine secretion, the urine sample can be taken at any time and no diet or liquid restrictions are necessary for sample collection.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 600 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 1 mg\/dL Protein and 1 mg\/dL Creatinine.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify protein creatinine ratio in urine samples by OD600 and OD530 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched urine samples handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in urine samples across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238316368237,"sku":"DPCR-100","price":639.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DPCRfig.jpg?v=1776668350"},{"product_id":"quantichrom-urea-assay-kit-ii-bht15600099","title":"QuantiChrom™ Urea Assay Kit II","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative enzymatic determination of urea. The assay uses OD557nm for signal readout. Compatible sample input includes Urea in biological samples (e.g. plasma, serum, urine) and food\/beverage samples (e.g. milk). Typical stated assay timing is 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD557nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Urea in biological samples (e.g. plasma, serum, urine) and food\/beverage samples (e.g. milk), which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 1 mg\/mL (0.17 mM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range (20 µL sample): 1 mg\/mL (0.17 mM) to 100 mg\/mL (17 mM) urea in a 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. The procedure involves adding a single working reagent and reading the absorbance after 5 minutes. Room temperature assay. No 37°C heater is needed; High-throughput. Homogeneous “mix-incubate-measure” type assay.Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of urea within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eUREA, the major end product of protein catabolism in animals, is primarily produced in the liver and secreted by the kidneys. It is the primary vehicle for the removal of toxic ammonia from the body. Urea determination is very useful for medical clinicians to assess the kidney function of patients. In general, increased urea levels are associated with nephritis, renal ischemia, urinary tract obstruction, and certain extrarenal diseases (e.g. congestive heart failure, liver diseases, and diabetes). Decreased levels often indicate acute hepatic insufficiency, but may also result from over-vigorous parenteral fluid therapy.BioAssay Systems colorimetric urea (BUN) assay is based on urease catalyzed conversion of urea to ammonium and carbon dioxide. The pH of the reaction medium is monitored by a chromogen and the intensity of the reaction product at 557 nm is directly proportional to the urea concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 557 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 1 mg\/mL (0.17 mM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify urea in urea in biological samples (plasma, serum by OD557 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched urea in biological samples (plasma, serum handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in urea in biological samples (plasma, serum across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238316990829,"sku":"DUR2-100","price":229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DUR2fig.jpg?v=1776668352"},{"product_id":"quantichrom-zinc-assay-kit-bht15600075","title":"QuantiChrom™ Zinc Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of zinc ion Zn 2+ and evaluation of drug effects on zinc metabolism. The assay uses OD425nm for signal readout. Compatible sample input includes Serum, plasma, urine, saliva, food, beverage, and environment. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD425nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, saliva, food, beverage, and environment, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.78 µg\/dL (0.12 µM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Uses 50 µL samples. Linear detection range 0.12 µM (0.78 µg\/dL) to 10 µM (65 µg\/dL) zinc in 96-well assay format.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 30 min. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvette or 96-well plate assay formats are possible. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of zinc within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eZinc is an essential trace element and plays many key roles in metabolism. It is required for the activity of more than 300 enzymes, the structure of many proteins, and the control of genetic expression. Zinc status affects basic processes of cell division, growth, differentiation, development, performance, and aging through its requirement for synthesis and repair of DNA, RNA, and protein. The common causes of zinc deficiency are low dietary intakes and low bioavailability. Clinical signs of zinc deficiency include acrodermatitis, low immunity, diarrhea, poor healing, stunting, hypogonadism, fetal growth failure, teratology, and abortion. Zinc deficiency has now been recognized to be associated with many diseases such as malabsorption syndrome, chronic liver disease, chronic renal disease, sickle cell disease, diabetes, malignancy, and other chronic illnesses. Simple, direct, and automation-ready procedures for measuring zinc concentration in biological samples are highly desirable in Research and Drug Discovery. BioAssay Systems zinc assay kit is designed to measure zinc directly in biological samples without any pretreatment. The present method utilizes a chromogen that forms a colored complex specifically with zinc. The intensity of the color, measured at 425 nm, is directly proportional to the zinc concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 425 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.78 µg\/dL (0.12 µM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify zinc in serum, plasma, urine by OD425 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, plasma, urine handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, plasma, urine across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238317318509,"sku":"DIZN-250","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DIZNfig.jpg?v=1776668351"},{"product_id":"quantifluo-ammonia-assay-kit-ii-bht15600007","title":"QuantiFluo™ Ammonia Assay Kit II","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of ammonia and ammonium in biological samples. The assay uses FL415\/475 nm for signal readout. Compatible sample input includes Serum, Plasma, urine, and other biological samples. Typical stated assay timing is 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e FL415\/475 nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, Plasma, urine, and other biological samples, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 5.3 µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range of 0.005 – 2mM ammonia.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient and high-throughput. A single component reagent. Homogeneous “mix-incubate-measure” type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of ammonia within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003eAMMONIA \u003c\/i\u003e(NH\u003csub\u003e3\u003c\/sub\u003e) or its ion form ammonium (NH\u003csub\u003e4\u003c\/sub\u003e\u003csup\u003e+\u003c\/sup\u003e) is an important source of nitrogen for living systems and is ubiquitously present in the nature. Simple, direct and automation-ready procedures for measuring NH\u003csub\u003e3\u003c\/sub\u003eare very desirable. BioAssay Systems’ updated ammonia\/ammonium assay is based on an improved o-phthalaldehyde method. This reagent reacts with ammonia\/ ammonium and forms a fluorescent product. The fluorescence intensity (λex\/em = 415\/475nm) is proportional to the ammonia concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eFluorescent (FL 415\/475 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 5.3 µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify ammonia in serum, Plasma, urine by FL415\/475 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, Plasma, urine handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, Plasma, urine across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238317351277,"sku":"D2NH3-100","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/D2NH3fig.jpg?v=1776668351"},{"product_id":"quantichrom-chloride-assay-kit-bht15600056","title":"QuantiChrom™ Chloride Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of chloride ion and evaluation of drug effects on chloride metabolism. The assay uses OD610nm for signal readout. Compatible sample input includes Biological, food, and environment. Typical stated assay timing is 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD610nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological, food, and environment, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.7 mg\/dL (0.2 mM) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive and accurate. Use as little as 5 µL samples. Linear detection range 0.7 mg\/dL (0.2 mM) to 35 mg\/dL (10 mM) Cl – in 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Simple and high-throughput. The procedure involves the addition of a single working reagent and incubation for 5 min. Can be readily automated as a high-throughput assay for thousands of samples per day; Improved reagent stability and versatility. The optimized formulation has greatly enhanced the reagent and signal stability. Cuvet or 96-well plate assay. Available format information for this listing includes 250 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of chloride within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e Chloride\u003c\/i\u003eis the major extracellular anion in human body fluids. Chloride plays a key role in maintaining proper water distribution, osmotic pressure, and electrolyte balance. Low chloride concentrations may be found with prolonged vomiting, extensive burns, metabolic acidosis, Addisonia crisis, and renal diseases. Elevated chloride concentrations are associated with dehydration, congestive heart failure, hyperventilation and urinary obstructions. Determination of chloride in sweat is useful in diagnosing cystic fibrosis. Simple, direct, and automation-ready procedures for measuring chloride concentration in biological samples are becoming popular in Research and Drug Discovery. BioAssay Systems chloride assay kit is designed to measure chloride directly in biological samples without any pretreatment. The improved Fried method utilizes mercuric 2,4,6-tripyridyl-s-triazine, which forms a colored complex specifically with chloride. The intensity of the color, measured at 610nm, is directly proportional to the chloride concentration in the sample. The optimized formulation substantially reduces interference by substances in the raw samples.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 610 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.7 mg\/dL (0.2 mM).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 5 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify chloride in biological, food, and environment by OD610 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological, food, and environment handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological, food, and environment across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"250 Tests","offer_id":53238317384045,"sku":"DICL-250","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/DICLfig.jpg?v=1776668352"},{"product_id":"enzychrom-glucose-6-phosphate-assay-kit-bht15600159","title":"EnzyChrom™ Glucose-6-Phosphate Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of glucose-6-phosphate in biological samples. The assay uses OD460nm for signal readout. Compatible sample input includes Plasma, serum, tissue and culture media etc. Typical stated assay timing is 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD460nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Plasma, serum, tissue and culture media etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 10 µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range: 10 to 1000 µM G6P.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient and high-throughput. Homogeneous “mix-incubate-measure” type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of glucose-6-phosphate within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e Glucose-6-Phosphate \u003c\/i\u003e(g6p) is glucose sugar phosphorylated on carbon 6. Most of the glucose entering cells is phosphorylated to G6P. G6P has three primary fates within the cell. It lies at the start of two major metabolic pathways: glycolysis and the pentose phosphate pathway. In addition to these metabolic pathways, glucose 6-phosphate may also be converted to glycogen or starch for storage. BioAssay Systems’ Glucose-6-Phosphate Assay Kit provides a simple, and automation-ready procedure for measuring G6P concentration. G6P is oxidized by glucose-6-phosphate dehydrogenase and the formed NADPH is coupled to the formazan (WST-8) chromogen. The intensity of the product color, measured at 460 nm, is proportional to the G6P concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 460 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 10 µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 20 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify glucose-6-phosphate in plasma, serum, tissue and culture media by OD460 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched plasma, serum, tissue and culture media handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in plasma, serum, tissue and culture media across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238317744493,"sku":"EG6P-100","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/EG6Pfig.jpg?v=1776668359"},{"product_id":"enzychrom-l-amino-acid-kit-bht15600184","title":"EnzyChrom™ L-Amino Acid Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of L-Amino Acids in biological and other samples. The assay uses OD570nm or FL530\/585nm for signal readout. Compatible sample input includes Serum, culture media, tissue homogenates, cell lysates, urine, food samples, etc. Typical stated assay timing is 60 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD570nm or FL530\/585nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, culture media, tissue homogenates, cell lysates, urine, food samples, etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 3.3 µM (colorimetric assay), 0.13 µM (fluorimetric assay) for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range: 3.3 to 500 µM (colorimetric assay) and 0.13 to 50 µM (fluorimetric assay) for 60 min reaction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. The procedure involves adding a single working reagent and reading after 60 minutes; High-throughput. Homogeneous “mix-incubate-measure” type assay. Can be readily automated to process thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of l-amino acid within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eL-AMINO-ACIDS\u003c\/em\u003eare the building blocks of proteins in biology. Almost all of the common 20 amino acids exist as the L-enantiomer. BioAssay Systems’ L-amino acid assay uses an enzyme-catalyzed oxidation of L-amino acids to convert a dye into a colored and fluorescent form. The absorbance at 570 nm or fluorescence intensity at λ\u003csub\u003eex\/em\u003c\/sub\u003e= 530\/585 nm is directly proportional to the L-amino acid concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 570 nm) or Fluorescent (FL 530\/585 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 3.3 µM (colorimetric assay), 0.13 µM (fluorimetric assay).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 60 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePrepare control-treated samples for paired use with compatible assay-kit plates.\u003c\/li\u003e\n  \u003cli\u003eBenchmark assay response against defined control conditions in replicate wells.\u003c\/li\u003e\n  \u003cli\u003eOptimize reagent concentration and incubation windows for plate-based comparisons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238318465389,"sku":"ELAA-100","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/ELAAfig.jpg?v=1776668360"},{"product_id":"enzychrom-urea-assay-kit-iii-bht15600215","title":"EnzyChrom™ Urea Assay Kit III","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative enzymatic determination of urea. The assay uses OD340nm for signal readout. Compatible sample input includes Urea in biological samples (e.g. plasma, serum, urine, bronchoalveolar lavage (BAL)) and food\/beverage samples (e.g. milk). Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD340nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Urea in biological samples (e.g. plasma, serum, urine, bronchoalveolar lavage (BAL)) and food\/beverage samples (e.g. milk), which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 50 µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Linear detection range (20 µL sample): 50 to 1000 µM urea in 96-well plate assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. The procedure involves adding a single working reagent, and reading the absorbance after 30 minutes. Room temperature assay. No 37°C heater is needed; High-throughput. Homogeneous “mix-incubate-measure” type assay.Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of urea within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eUREA, the major end product of protein catabolism in animals, is primarily produced in the liver and secreted by the kidneys. It is the primary vehicle for removal of toxic ammonia from the body. Urea determination is very useful for medical clinicians to assess kidney function of patients. In general, increased urea levels are associated with nephritis, renal ischemia, urinary tract obstruction, and certain extrarenal diseases (e.g. congestive heart failure, liver diseases, and diabetes). Decreased levels often indicate acute hepatic insufficiency, but may also result from over vigorous parenteral fluid therapy. Simple, direct and automation-ready procedures for measuring urea or blood urea nitrogen (BUN) are popular in research and drug discovery.BioAssay Systems urea assay is designed to directly measure urea in biological samples. In this assay, urease converts urea to ammonia and carbon dioxide. NADH is then converted to NAD+ in the presence of ammonia, α-ketoglutarate, and glutamate dehydrogenase. The decrease in optical density at 340 nm is directly proportional to the urea concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 340 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 50 µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify urea in urea in biological samples (plasma, serum by OD340 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched urea in biological samples (plasma, serum handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in urea in biological samples (plasma, serum across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238319120749,"sku":"EUR3-100","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/EUR3fig.jpg?v=1776668362"},{"product_id":"enzychrom-ammonia-assay-kit-bht15600196","title":"EnzyChrom™ Ammonia Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor quantitative determination of ammonia\/ammonium and evaluation of drug effects on their metabolism. The assay uses OD340nm, or FL360\/450nm for signal readout. Compatible sample input includes Serum, plasma, urine, saliva, cell culture etc. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD340nm, or FL360\/450nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, saliva, cell culture etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 24 µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e High sensitivity and wide linear range. Use a 20 µL sample. Linear detection range from 24 to 1000 µM ammonia.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Homogeneous and simple procedure. A simple “mix-and-measure” procedure allows reliable quantitation of ammonia within 30 minutes. Available format information for this listing includes 100 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of ammonia within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003e Ammonia \u003c\/i\u003e(NH\u003csub\u003e3\u003c\/sub\u003e) or its ion form ammonium (NH\u003csub\u003e4\u003c\/sub\u003e\u003csup\u003e+\u003c\/sup\u003e) is an important source of nitrogen for living systems. It is synthesized through amino acid metabolism and is toxic when present at high concentrations. In the liver, ammonia is converted to urea through the urea cycle. Elevated levels of ammonia in the blood (hyperammonemia) have been found in liver dysfunction (cirrhosis), while hypoammonemia has been associated with defects in the urea cycle enzymes (e.g. ornithine transcarbamylase). Simple, direct, and automation-ready procedures for measuring NH\u003csub\u003e3\u003c\/sub\u003eare popular in research and drug discovery. BioAssay Systems ammonia assay is designed to directly measure NH\u003csub\u003e3\u003c\/sub\u003eand NH\u003csub\u003e4\u003c\/sub\u003e\u003csup\u003e+\u003c\/sup\u003e. In this assay, NADH is converted to NAD\u003csup\u003e+\u003c\/sup\u003ein the presence of NH\u003csub\u003e3\u003c\/sub\u003e, ketoglutarate, and glutamate dehydrogenase. The decrease in optical density at 340 nm or fluorescence intensity at λex\/em = 360\/450 nm is directly proportionate to the NH\u003csub\u003e3\u003c\/sub\u003econcentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 340 nm) or Fluorescent (FL 360\/450 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 24 µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify ammonia in serum, plasma, urine, saliva, cell culture by OD340 nm, or FL360\/450 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, plasma, urine, saliva, cell culture handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, plasma, urine, saliva, cell culture across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests","offer_id":53238319808877,"sku":"ENH3-100","price":429.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/ENH3fig.jpg?v=1776668361"},{"product_id":"malachite-green-phosphate-assay-kit-bht15600229","title":"Malachite Green Phosphate Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor sensitive and high-throughput phosphate determination. The assay uses OD620nm (malachite green) for signal readout. Compatible sample input includes Biological, environment etc. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD620nm (malachite green) supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological, environment etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.02 µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Reagent is very stable. Due to our innovative formulation, no precipitation of reagent occurs. Therefore no filtration of reagent is needed prior to assays, as is often required with other commercial kits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight High sensitivity and wide detection range: detection of as little of 1.6 pmoles of phosphate and useful range between 0.02 µM and 40 µM phosphate; Fast and convenient: homogeneous “mix-and-measure” assay allows quantitation of free phosphate within 20 minutes. Available format information for this listing includes 2500 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of malachite green phosphate within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eThe Malachite Green Phosphate Assay Kit is based on the quantification of the green complex formed between Malachite Green, molybdate and free orthophosphate. The rapid color formation from the reaction can be conveniently measured on a spectrophotometer (600 – 660 nm) or on a plate reader. The non-radioactive colorimetric assay kits have been optimized to offer superior sensitivity and prolonged shelf life. The assay is simple and fast, involving a single addition step for phosphate determination. Assays can be executed in tubes, cuvettes or multi-well plates. The assays can be conveniently performed in 96- and 384-well plates for high-throughput screening of enzyme inhibitors.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 620 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.02 µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify malachite green phosphate in biological, environment by OD620 nm (malachite green) readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched biological, environment handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in biological, environment across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"2500 Tests","offer_id":53238320005485,"sku":"POMG-25H","price":329.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/POMGfig.jpg?v=1776668362"},{"product_id":"quantiquik-urea-bun-quick-test-strips-bht15600250","title":"QuantiQuik™ Urea (BUN) Quick Test Strips","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor rapid, direct determination of urea concentrations in food and beverage samples as well as biological samples. The assay uses Visual for signal readout. Compatible sample input includes Serum, plasma, urine, etc. Typical stated assay timing is Approximately 15 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e Visual supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkflow timing:\u003c\/strong\u003e The listed assay time of Approximately 15 min helps frame batch planning, replicate handling, and plate throughput.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Use of 20 µL sample. Semi-quantitative measurement between 0-1500 mg\/L (undiluted) urea.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. No expensive plate or cuvette readers needed; Sample treatment and assay can be performed in under 15 minutes. Available format information for this listing includes 10 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of quantiquik urea (bun) quick test strips within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eUREA, the major end product of protein catabolism in animals, is primarily produced in the liver and secreted by the kidneys. It is the primary vehicle for removal of toxic ammonia from the body. Urea is widely used in the agricultural industry as a fertilizer as well as an animal feed additive. Milk urea is often monitored to determine the amount of protein in an animal’s diet. Additionally, small amounts of urea can be found in many kinds of fermented foods and beverages.BioAssay Systems QuantiQuik™ Urea (BUN) Test Strips are based on Urease catalyzed conversion of urea to ammonium and carbon dioxide. The pH of the reaction medium is monitored by a chromogen and the intensity of the product color is directly proportional to the urea concentration in the sample. The QuantiQuik™ Urea Test strips allow for the rapid and inexpensive quantitative determination of urea or blood urea nitrogen (BUN) and do not require sophisticated laboratory instruments.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eVisual.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: Approximately 15 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eScreen quantiquik urea (bun) quick test strips in serum, plasma, urine using strip-based detection.\u003c\/li\u003e\n  \u003cli\u003eCompare threshold or presence-call outcomes across matched sample groups.\u003c\/li\u003e\n  \u003cli\u003eMonitor routine or field-collected batches with consistent collection timing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"10 Tests","offer_id":53238320038253,"sku":"QQUREA10","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/QQUREAfig.jpg?v=1776668363"},{"product_id":"quantiquik-oxalate-quick-test-strips-bht15600248","title":"QuantiQuik™ Oxalate Quick Test Strips","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor rapid, direct determination of oxalate concentrations in biological samples. For Research Use Only (not for medical decisions). The assay uses Visual for signal readout. Compatible sample input includes Serum, plasma, urine, fruits or vegetables, etc. Typical stated assay timing is Approximately 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e Visual supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, fruits or vegetables, etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkflow timing:\u003c\/strong\u003e The listed assay time of Approximately 10 min helps frame batch planning, replicate handling, and plate throughput.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Use of 10 µL sample. Semi-quantitative measurement between 0-1.5 mg\/dL or 0-170 µM (undiluted) Oxalate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. No expensive plate or cuvette readers required; Sample treatment and assay can be performed in under 10 minutes. Available format information for this listing includes 10 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of quantiquik oxalate quick test strips within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eOxalate, or Oxalic Acid, is a metabolic breakdown product of the Kreb’s Cycle in eukaryotes and the glyoxylate cycle in other microorganisms. Typically present in the urine of humans and other mammals, oxalate concentration can be used as a measure of kidney function. A high level of oxalate is an indicator for kidney stones, which are primarily made of the insoluble salt calcium oxalate. Measuring oxalate is more accurate than measuring calcium as a marker for kidney stones because calcium is excreted at high concentrations even in normal urine.BioAssay Systems’ QuantiQuik™ Oxalate Quick Test Strips are based on the enzymatic oxidation of oxalate coupled with a color reaction in one step. The intensity of product color is directly proportional to the oxalate concentration in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eVisual.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: Approximately 10 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eScreen quantiquik oxalate quick test strips in serum, plasma, urine, fruits or vegetables using strip-based detection.\u003c\/li\u003e\n  \u003cli\u003eCompare threshold or presence-call outcomes across matched sample groups.\u003c\/li\u003e\n  \u003cli\u003eMonitor routine or field-collected batches with consistent collection timing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"10 Tests","offer_id":53238320234861,"sku":"QQOXLT10","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/QQOXLTfig.jpg?v=1776668363"},{"product_id":"quantiquik-albumin-quick-test-strips-bht15600240","title":"QuantiQuik™ Albumin Quick Test Strips","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor rapid, direct determination of albumin concentrations in biological samples (e.g. serum, plasma, urine, etc). The assay uses Visual for signal readout. Compatible sample input includes Serum, plasma, urine, etc. Typical stated assay timing is Approximately 15 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e Visual supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Serum, plasma, urine, etc, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkflow timing:\u003c\/strong\u003e The listed assay time of Approximately 15 min helps frame batch planning, replicate handling, and plate throughput.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Fast and sensitive. Use of 10 µL sample. Semi-quantitative measurement between 0-0.4 g\/dL or 0-60 µM (undiluted) Albumin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Convenient. No sophisticated laboratory equipment is required; Sample treatment and assay can be performed in under 15 minutes. Available format information for this listing includes 10 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of quantiquik albumin quick test strips within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eALBUMIN is the most abundant plasma protein in humans. Albumin plays many important physiological roles, including the maintenance of colloid osmotic pressure and binding of key substances such as long-chain fatty acids, bile acids, bilirubin, haematin, calcium, and magnesium. Serum albumin is a reliable prognostic indicator for liver disease, nephritic syndrome, malnutrition, protein-losing enteropathies, as well as morbidity and mortality. In addition, elevated levels of serum albumin are associated with dehydration. Detection of albumin in the urine is also crucial for the diagnosis of patients with albuminuria disease.BioAssay Systems’ QuantiQuik™ Albumin Test Strips are based on the immobilization of an albumin-sensitive chromagen onto a pad. Albumin will react with the chromagen and produce a colored product. The intensity of the product color is directly proportional to the albumin concentration in the sample. The QuantiQuik™ Albumin Test strips are a rapid and inexpensive method for semi-quantitative determination of albumin that does not require sophisticated laboratory instrument\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eVisual.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: Approximately 15 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eScreen quantiquik albumin quick test strips in serum, plasma, urine using strip-based detection.\u003c\/li\u003e\n  \u003cli\u003eCompare threshold or presence-call outcomes across matched sample groups.\u003c\/li\u003e\n  \u003cli\u003eMonitor routine or field-collected batches with consistent collection timing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"10 Tests","offer_id":53238320398701,"sku":"QQALBM10","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/QQALBMfig.jpg?v=1776668362"},{"product_id":"quantichrom-glucose-6-phosphate-dehydrogenase-inhibitor-screening-kit-bht15600224","title":"QuantiChrom™ Glucose-6-Phosphate Dehydrogenase Inhibitor Screening Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor evaluation and high-throughput screen (HTS) of glucose-6-phosphate dehydrogenase modulators. The assay uses OD565nm for signal readout. Compatible sample input includes Compounds that affect glucose-6-phosphate dehydrogenase activity. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD565nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Compounds that affect glucose-6-phosphate dehydrogenase activity, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkflow timing:\u003c\/strong\u003e The listed assay time of 30 min helps frame batch planning, replicate handling, and plate throughput.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Safe. Non-radioactive assay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight High-throughput. Homogenous “mix-incubate-measure” type assay. Can be readily automated on HTS liquid handling system; Rapid and reliable. Can be completed in 30 minutes and no 37°C heater is needed. Available format information for this listing includes 100 Tests (Custom bulk sizes available upon request).\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of glucose-6-phosphate dehydrogenase inhibitor screening within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eGLUCOSE-6-PHOSPHATE DEHYDROGENASE (G6PDH) is a cytosolic enzyme in the pentose phosphate pathway which supplies reducing energy to cells by maintaining the level of the co-enzyme nicotinamide adenine dinucleotide phosphate (NADPH). G6PDH reduces nicotinamide adenine dinucleotide phosphate (NADP) to NADPH while oxidizing glucose-6-phosphate (G6P). Humans with a genetic deficiency of G6PDH are predisposed to non-immune hemolytic anemia. Recently, studies have found G6PDH plays a critical role in the survival, proliferation, and metastasis of cancer cells. Therefore, inhibitors of the enzyme are attractive candidates for new cancer therapeutics. BioAssay System’s non-radioactive, colorimetric G6PDH assay is based on the reduction of the tetrazolium salt MTT in a NADPH-coupled enzymatic reaction to a reduced form of MTT which exhibits an absorption maximum at 565 nm. The increase in absorbance at 565 nm is proportional to the enzyme activity. The percent inhibition of a test compound can be determined by comparing the activity of G6PDH treated with a test compound to the activity of untreated G6PDH.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 565 nm).\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eScreening services\u003c\/h2\u003e\n\u003cp\u003eBioAssay Systems offers comprehensive GLucose-6-Phosphate Dehydrogenase lead discovery services, including compound library screening, inhibitor profiling, and high-throughput assays to identify potential drug candidates. We provide detailed analyses of compound activity, potency, and selectivity, supporting hit-to-lead and lead optimization efforts. Please contact us by Service .\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eThe description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify glucose-6-phosphate dehydrogenase inhibitor screening in compounds that affect glucose-6-phosphate by OD565 nm.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched compounds that affect glucose-6-phosphate handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in compounds that affect glucose-6-phosphate across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests (Custom bulk sizes available upon request)","offer_id":53238320660845,"sku":"IGPDH-100","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/IGPDHfig.jpg?v=1776668363"},{"product_id":"enzychrom-uric-acid-assay-kit-ii-bht15600214","title":"EnzyChrom™ Uric Acid Assay Kit II","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eUric acid determination in biological samples such as cell culture media, biofluids (serum, urine), cell and tissue extracts. Sensitive. Use 10 µL samples. Linear detection range: Colorimetric assay 15 - 1000 µM Uric Acid. Fluorimetric. The assay uses OD570 or FL530\/585nm for signal readout. Compatible sample input includes Biological samples such as cell culture media, biofluids (serum, urine), cell and tissue extracts.. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD570 or FL530\/585nm supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Biological samples such as cell culture media, biofluids (serum, urine), cell and tissue extracts., which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 4 μM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Sensitive. Use 10 μL samples. Linear detection range: Colorimetric assay 15 – 1000 μM Uric Acid. Fluorimetric assay 4 – 300 μM Uric Acid.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight Fast. Run time is 30 minutes for Optical Density method and 10 minutes for Fluorimetric method for rapid results; Convenient. Room temperature “mix-and-read” procedure can be readily automated for high-throughput assay of thousands of samples per day. Available format information for this listing includes 100 Tests in 96-well plate.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of uric acid within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003e\u003ci\u003eURIC ACID\u003c\/i\u003eis the breakdown product of purines such as adenosine and inosine. Humans and other primates are incapable of further metabolizing uric acid. In humans, uric acid is excreted via the kidneys, but a failure to remove excess uric acid can lead to conditions such as gout or uric acid kidney stones.BioAssay Systems’ method provides a simple and high-throughput assay for measuring uric acid levels. In this assay, uric acid is enzymatically converted to allantoin, releasing H\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e2\u003c\/sub\u003e. The resulting H\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e2\u003c\/sub\u003ereacts with a specific dye to form a pink-colored product. The change in OD570nm or fluorescence intensity at λex\/em = 530\/585nm is directly proportional to the uric acid present in the sample.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 570 nm) or Fluorescent (FL 530\/585 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 4 μM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify uric acid in serum, urine by OD570 or FL530\/585 nm readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched serum, urine handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in serum, urine across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"100 Tests in 96-well plate","offer_id":53238320791917,"sku":"EUAC-100","price":469.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/EUACfig.jpg?v=1776668364"},{"product_id":"piblue-phosphate-assay-kit-bht15600230","title":"PiBlue™ Phosphate Assay Kit","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eFor sensitive and high-throughput phosphate determination. The assay uses OD620nm (malachite green) for signal readout. Compatible sample input includes Enzyme reactions with free phosphate releases. Typical stated assay timing is 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReadout format:\u003c\/strong\u003e OD620nm (malachite green) supports plate-based signal acquisition and consistent comparison across matched samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample compatibility:\u003c\/strong\u003e The stated sample scope includes Enzyme reactions with free phosphate releases, which is useful when aligning matrix type with calibration and control design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical range context:\u003c\/strong\u003e The supplied specifications include a stated detection limit of 0.4 µM for interpreting low-signal samples.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeature emphasis:\u003c\/strong\u003e Reagent very stable. Due to our innovative formulation, no precipitation of reagent occurs. Therefore no filtration of reagent is needed prior to assays, as is often required with other commercial kits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional feature notes highlight High sensitivity and wide detection range: detection of as little of 20 pmoles of phosphate and useful range between 0.4 µM and 50 µM phosphate; Fast and convenient: single reagent “mix-and-measure” assay allows quantitation of free phosphate within 30 minutes. Available format information for this listing includes 500 Tests.\u003c\/p\u003e\n\n\u003ch2\u003eBiological background\u003c\/h2\u003e\n\u003cp\u003eThis product is centered on measurement of piblue phosphate within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.\u003c\/p\u003e\n\n\u003ch2\u003eMore details\u003c\/h2\u003e\n\u003cp\u003eThe PiBlue™ Phosphate Assay Kit is based on a proprietary formulation of the malachite green dye. The PiBlue™ reagent forms a blue colored complex with free orthophosphate. The rapid color formation from the reaction can be conveniently measured on a spectrophotometer (600 – 660 nm) or on a plate reader. The non-radioactive colorimetric assay kits have been optimized to offer superior sensitivity and prolonged shelf life. The assay is simple and fast, involving a single addition step for phosphate determination. Assays can be performed in tubes, cuvettes or multi-well plates. The assays can be conveniently executed in 96-well plates for high-throughput screening of enzyme inhibitors.\u003c\/p\u003e\n\n\u003ch2\u003eDetection method\u003c\/h2\u003e\n\u003cp\u003eColorimetric (OD 620 nm).\u003c\/p\u003e\n\n\u003ch2\u003eDetection limit and analytical sensitivity\u003c\/h2\u003e\n\u003cp\u003eReported detection limit: 0.4 µM.\u003c\/p\u003e\n\n\u003ch2\u003eProcedures and timing\u003c\/h2\u003e\n\u003cp\u003eStated procedure or timing information: 30 min.\u003c\/p\u003e\n\n\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePlate-based quantification and side-by-side group comparison remain central use cases for this assay format.\u003c\/li\u003e\n  \u003cli\u003eThe product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.\u003c\/li\u003e\n  \u003cli\u003eShort assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon research applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eQuantify piblue phosphate in enzyme reactions with free phosphate releases by OD620 nm (malachite green) readout.\u003c\/li\u003e\n  \u003cli\u003eCompare treatment or phenotype groups using matched enzyme reactions with free phosphate releases handling.\u003c\/li\u003e\n  \u003cli\u003eMonitor time-course or pre\/post changes in enzyme reactions with free phosphate releases across study conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInterpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.\u003c\/p\u003e\n\n\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMatrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Sources (internal):\n- Product Description column\n- Key Features column\n- More Details column\n- Method \/ Sample Type(s) \/ Assay Time \/ Detection Limit \/ Detection Method columns\n- Procedures column\n- Screening Services column\n--\u003e","brand":"BioAssay Systems","offers":[{"title":"500 Tests","offer_id":53238321054061,"sku":"POPB-500","price":279.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/POPBfig.jpg?v=1776668363"}],"url":"https:\/\/www.ebiohippo.com\/collections\/rs-renal-function-markers.oembed","provider":"BioHippo","version":"1.0","type":"link"}