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Human hs-CRP(high-sensitivity C-Reactive Protein) ELISA Kit

  • Cat.No.:E-EL-H5134

  • Reactivity: Human

To Purchase E-EL-H5134

  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $495

Product Details


Assay type Sandwich-ELISA
Format 96T/48T
Assay time 3.5h
Detection range 15.63-1000 pg/mL
Sensitivity 9.38 pg/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Human hs-CRP in samples. No significant cross-reactivity or interference between Human hs-CRP and analogues was observed.
Reproducibility Both intra-CV and inter-CV are < 10%.
Application This ELISA kit applies to the in vitro quantitative determination of Human hs-CRP concentrations in serum, plasma and other biological fluids.

Test 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 hs-CRP. 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 hs-CRP 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 hs-CRP, 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 hs-CRP. You can calculate the concentration of Human hs-CRP in the samples by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
Micro ELISA Plate(Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
-20℃, 6 months
Reference Standard 96T: 2 vials
48T: 1 vial
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
-20℃(Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL
HRP Conjugate Diluent 1 vial, 14 mL
Concentrated Wash Buffer (25×) 1 vial, 30 mL
Substrate Reagent 1 vial, 10 mL 2-8℃(Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Technical Data


Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human hs-CRP were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human hs-CRP were tested on 3 different plates, 20 replicates in each plate.

  Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (pg/mL) 48.52 154.68 451.79 45.99 149.25 455.20
Standard deviation 3.24 7.55 24.26 2.99 8.42 19.71
CV (%) 6.68 4.88 5.37 6.50 5.64 4.33


The recovery of Human hs-CRP spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 83-97 90
EDTA plasma (n=8) 89-99 94
Cell culture media (n=8) 94-106 99


Samples were spiked with high concentrations of Human hs-CRP and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Assay Procedures

elisa assay procedure 1

1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C

elisa assay procedure 2

2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C

elisa assay procedure 3

3. Aspirate and wash the plate for 3 times

elisa assay procedure 4

4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 5

5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 6

6. Add 50μL Stop Solution

elisa assay procedure 7

7. Read the plate at 450nm immediately. Calculation of the results


From now on, if you have published a paper by using any of our products since 1/1/2019, fill out the “Elabscience Publication Reward Application Form”carefully and send it to, we will get back to you with the reward after we confirm it ASAP!

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  1. Nutrients (2018) IF: 4.196
    Inflammatory Dietary Pattern, IL-17F Genetic Variant, and the Risk of Colorectal Cancer.

    DOI: 10.3390/nu10060724

    PMID: 29874787

    Sample: Plasma
  2. HIV Medicine (2020) IF: 3.556
    Effects of antiretroviral therapy on proprotein convertase subtilisin/kexin 9: focus on lipids, inflammation and immunovirological parameters

    DOI: 10.1111/hiv.12884

    PMID: 32496664

    Sample: Plasma
  3. Pediatric Pulmonology (2020) IF: 2.534
    Obstructive sleep apnea in children with hypothalamic obesity: Evaluation of possible related factors

    DOI: 10.1002/ppul.25097

    PMID: 32986303

    Sample: Plasma
  4. Journal of Food Biochemistry (2020) IF: 1.662
    Human clinical trial to assess the effect of consumption of multigrain Indian bread on glycemic regulation in type 2 diabetic participants

    DOI: 10.1111/jfbc.13465

    PMID: 33006193

    Sample: Plasma
  5. Journal of the National Medical Association (2020) IF: 1.03
    Cardiovascular Risk Indices and Their Impact on Outcome in Patients with Hyperglycaemic Emergencies in a Nigerian Hospital

    DOI: 10.1016/j.jnma.2019.12.004

    PMID: 31973880

    Sample: Serum
  6. Therapeutics and Clinical Risk Management (2018) IF: 1.995
    Efficacy and safety of Ginkgo biloba extract as an “add-on” treatment to metformin for patients with metabolic syndrome: a pilot clinical study.

    DOI: 10.2147/TCRM.S169503

    PMID: 30034238

    Sample: Serum
  7. Journal of BU ON.: official journal of the Balkan Union of Oncology (2019)
    Effects of postoperative enteral nutrition combined with adjuvant radiotherapy on inflammatory response, nutrition, healing and prognosis in patients receiving radical surgery for esophageal carcinoma

    PMID: 31646824

    Sample: Serum
  8. Diabetes & Metabolic Syndrome: Clinical Research & Reviews (2020)
    Role of C-reactive Protein(CRP) or high-sensitivity CRP in predicting gestational diabetes Mellitus:Systematic review

    DOI: 10.1016/j.dsx.2020.02.004

    PMID: 32247209

    Sample: Serum
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