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SARS-CoV-2 Spike Protein S1 RBD ELISA Kit

  • Cat.No.:E-EL-E605

  • Reactivity: Human
  • Assay Type: Sandwich-ELISA
  • Assay time: 3.5h

To Purchase E-EL-E605

  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $550


Format 24T, 96T, 96T*5, 96T*10
Assay time 3.5h
Sample type serum, plasma and other biological fluids
Sample volume 100μL
Storage 2-8℃
Interpretation Qualitative
Application This ELISA kit applies to the in vitro Qualitative determination of S1 RBD in serum or plasma.
Synonyms Spike protein S1, S1 subunit, Receptor binding domain, S1RBD, RBD domain

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 SARS-CoV-2 S1RBD. Samples (or Standards) and biotinylated detection antibody specific for SARS-CoV-2 S1RBD are added to the micro ELISA plate wells. SARS-CoV-2 S1RBD would combine with the specific antibody. Then 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 SARS-CoV-2 S1RBD, 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 ± 2 nm. The OD value is proportional to the concentration of SARS-CoV-2 S1RBD. You can calculate the concentration of SARS-CoV-2 S1RBD in the samples by comparing the OD of the samples to the standard curve.

Assay Procedures


  1. Scientific Reports (2022) IF: 4.38
    Anti-nucleocapsid antibodies enhance the production of IL-6 induced by SARS-CoV-2 N protein

    DOI: 10.1038/s41598-022-12252-y

    Sample: Tmprss2/Veroe6 Cell
  2. Advanced Science (2021) IF: 16.806
    Biomaterials and Oxygen Join Forces to Shape the Immune Response and Boost COVID-19 Vaccines

    DOI: 10.1002/advs.202100316

    PMID: 34580619

    Sample: Blood


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