Human NE/ELA2 (Neutrophil Elastase/Elastase-2) ELISA Kit

SKU:BHE10304248
Research Validated
Overview
Click light‑blue chips for details
NE;ELA2 (Human) ELISA kit for quantitative measurement, in serum, plasma and other biological fluids (Sandwich format). HRP-colorimetric detection with standard-curve quantification. Sensitivity: 0.47 ng/mL.
Assay Type Sandwich ELISA
Sample Type Serum
Sensitivity 0.47 ng/mL
Detection Range 0.78-50 ng/mL
Species Human
Assay Time 3 h 30 min
Detection Method Colorimetric (TMB/HRP)
Options selector
Catalog no. Size
E-EL-H1946_24T 24 T
E-EL-H1946_48T 48 T
E-EL-H1946_96T 96 T
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size (3) - 24 T, 48 T, 96 T
  • Lead time: varies by selected option.
  • Storage: 2-8℃,12 months
  • Shipping: cold-chain shipment (typically with ice packs).
  • Upon receipt: refrigerate upon receipt at 2–8°C.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
UniProt # P08246
Applications
  • ELISA
Sensitivity 0.47 ng/mL
Detection range 0.78-50 ng/mL
Detection method
  • Colorimetric method
  • ELISA
  • Sandwich
Assay time
  • 3 h 30 min
Storage 2-8℃,12 months
Shipping Ice packs
Catalog no. (Mfr.) E-EL-H1946
Main SKU BHE10304248

Scientific Background

This ELISA kit applies to the in vitro quantitative determination of Human NE/ELA2 concentrations in serum, plasma and other biological fluids.

Assay Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human NE/ELA2. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human NE/ELA2 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human NE/ELA2, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human NE/ELA2. You can calculate the concentration of Human NE/ELA2 in the samples by comparing the OD of the samples to the standard curve.

Performance Specifications

Sensitivity 0.47 ng/mL
Detection Range 0.78-50 ng/mL
Total Assay Time 3 h 30 min
Compatible Sample Types Serum, plasma and other biological fluids
Species Reactivity Human
Detection Method Sandwich
Precision (CV) Both intra-CV and inter-CV are < 10%.
Recovery Rate 80%-120%
Storage 2-8℃,12 months

✓ Research-Grade Validation

Specificity

This kit recognizes Human NE/ELA2 in samples. No significant cross-reactivity or interference between Human NE/ELA2 and analogues was observed

Safety & Regulatory

Research Use Only (RUO). This product is intended for research purposes only and is not approved for diagnostic, therapeutic, or clinical use.

Handle reagents in accordance with institutional biosafety guidelines. Refer to the Safety Data Sheet (SDS) for complete hazard and handling information. Contains components that may require special disposal procedures per local regulations.

What sample types are compatible with this NE;ELA2 ELISA kit?

This kit is validated for use with Serum, plasma and other biological fluids. For unlisted matrices (e.g., tissue lysate, urine), perform a spike-and-recovery experiment to confirm assay performance before generating reportable data. Sample dilution in the kit's provided diluent is recommended to minimize matrix interference.

What is the detection limit for NE;ELA2?

The minimum detectable concentration (sensitivity) of this kit is 0.47 ng/mL. Values below this threshold should be reported as below the limit of detection (<LOD) and should not be extrapolated from the standard curve.

How long does the complete assay take?

The total assay time from sample addition to absorbance reading is approximately 3 h 30 min, including all incubation, wash, and substrate steps. Hands-on time is typically 1–2 hours; most steps involve passive plate incubation. Plan the assay as a single uninterrupted session for best results.

What reagents and materials are included in the kit?

Standard components of this Sandwich ELISA Kit typically include: pre-coated microplate (96-well strip format), lyophilized or liquid recombinant NE;ELA2 standard, detection antibody, streptavidin-HRP conjugate, TMB substrate, stop solution, wash buffer concentrate, and sample/standard diluent. Refer to the kit insert or datasheet for the exact component list and storage requirements.

What instrument is required to read the assay?

This kit uses colorimetric (TMB/HRP) detection and requires a standard microplate absorbance reader capable of measuring at 450 nm. A reference wavelength of 570 nm or 630 nm is recommended to reduce background. No specialized fluorescence or luminescence reader is needed. Ensure the instrument is calibrated and the plate is clean and free of condensation before reading.

Why is it necessary to add a protease inhibitor in tissue sample preparation during an Elisa experiment? Will it affect the detection significantly if there is no protease inhibitor?

Tissue samples may contain endogenous or exogenous proteases during processing, leading to degradation of extracted proteins. Therefore, it's necessary to add protease inhibitors during processing to ensure the integrity of target proteins. If customers can keep samples cold and handle them quickly during processing, omitting the protease inhibitor may not have a significant effect. After preparation, samples should be tested promptly or immediately aliquoted and frozen at -20°C or -80°C.

This kit is designed for the original strain of the new crown virus, and the omicron variant has not been verified. However, we have verified 26 recombinant variants of the SARS-CoV-2 spike protein through the kit. For more information, customers can refer to the kit instructions (https://file.elabscience.com/Manual/covid_19/E-EL-E605 .pdf).

What is the range of enzyme activity of your IL-2 freeze-dried powder

Currently our freeze-dried powder is a concentration unit with no information on the activity unit for the time being.

What is the principle of adding stop solution to stop color reaction in ELISA experiment?

Can’t Find What You’re Looking For? We can help you source the best match or customize an ELISA solution for your study. Options may include alternative target synonyms, different species reactivity, sample type/matrix compatibility (serum/plasma/lysate/supernatant), assay format (sandwich/competitive), sensitivity/range, detection chemistry (colorimetric/fluorescent/chemiluminescent), plate format (pre-coated/uncoated, strips vs full plate), and bulk or custom packaging. Click Talk to a Scientist to submit a request form, email us at support@biohippo.com, or explore our Research Services for additional support. Our team will be in contact with you shortly.

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