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Your Position: Home > Antigen kits > Spike RBD > RAS-A021

SARS-CoV-2 Spike RBD Titer Assay Kit

For research use only.
RAS021-C01Pre-coated with Anti-SARS-CoV-2 Spike RBD Antibody Microplate1 plate
RAS021-C02SARS-CoV-2 Spike RBD10 μg
RAS021-C03Biotin-Anti-SARS-CoV-2 Spike RBD Antibody10 μg
RAS021-C04Streptavidin-HRP10 μg
RAS021-C0510 x Washing Buffer 50 mL
RAS021-C06Dilution Buffer50 mL
RAS021-C07Substrate Solution12 mL
RAS021-C08Stop Solution7 mL
  • Background
    The newly identified Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has posed a serious threat to human health. A rapid and effective assay kit detecting the levels of SARS-CoV-2 Spike Protein RBD is urgently needed to accelerate the development of COVID-19 vaccines.
  • Application
    This kit is developed for detecting SARS-CoV-2 Spike RBD in vaccine samples,witch can meet the needs of vaccine developers to establish antigen quantification methods for preclinical evaluation, vaccine production and quality control, and realize accurate quantification of vaccine antigen contents for COVID-19 vaccines of all technological platforms, multivalent vaccines, and VOC-specific boosters.

    It is for research use only.

  • Reconstitution
    Please see Certificate of Analysis for details of reconstitution instruction and specific concentration.
  • Storage & Shipping
    The unopened kit is stable for 12 months from the date of manufacture if stored at 2°C to 8°C.

    The opened kit should be stored per components table. The shelf life is 30 days from the date of opening.

    The kit shipped at room temperature that had been validated. Please contact us if you need blue ice shipping, but additional freight may be followed.

    Below is the Shipping Statement for Kit Products.

    Shipping Statement

  • Assay Principles
    This assay kit employs a standard sandwich-ELISA format, providing a rapid detection of SARS-CoV-2 Spike RBD. The kit consists of microplate pre-coated with Anti-SARS-CoV-2 Spike RBD Antibody, an SARS-CoV-2 Spike RBD as Control, an biotin-Anti-SARS-CoV-2 Spike RBD Antibody, HRP-Streptavidin and buffers.

    Your experiment will include 6 simple steps:

    a) All reagents were returned to room temperature(20°C-25°C) before use.

    b) Add your sample to the plate, take the SARS-CoV-2 Spike RBD as Control sample. The samples and Control sample are diluted by Dilution Buffer.

    c) Add a diluted Secondary antibody biotin-Anti-SARS-CoV-2 Spike RBD Antibody to the plate. The Secondary antibody is diluted by Dilution Buffer.

    d) Add a diluted Streptavidin-HRP to the plate.

    e) Wash the plate and add TMB or other colorimetric HRP substrate.

    f) Stop the substrate reaction by add diluted acid. Absorbance (OD) is calculated as the absorbance at 450 nm minus the absorbance at 630 nm to remove background prior to statistical analysis. The OD Value reflects the amount of protein bound.

Typical Data Please refer to DS document for The assay protocol.

This assay kit employs a standard sandwich-ELISA format providing a rapid detection of SARS-CoV-2 Spike RBD. The kit consists of pre-coated Anti-SARS-CoV-2 Spike RBD Antibody Microplate, SARS-CoV-2 Spike RBD as Control, biotin-Anti-SARS-CoV-2 Spike RBD antibody and HRP-Streptavidin. Detection is performed using HRP-Streptavidin with sensitivity of 12 pg/mL (QC tested).


SARS-CoV-2 Spike RBD Titer Assay Kit (Cat.No.RAS-A021) can potently to detect the all SARS-CoV-2 Variants of Concern (VOCs), including Alpha (Cat.No.SPD-C5225), Beta (Cat.No.SPD-C52Hp), Gamma (Cat.No.SPD-C52Hr) and Delta (Cat.No.SPD-C52Hh).


SARS-CoV-2 Spike RBD Titer Assay Kit (Cat.No.RAS-A021) can potently to detect the all SARS-CoV-2 Variants of Concern (VOCs), including Omicron (Cat.No.SPD-C522e).

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ETD of in-stock products: 2 business days

Price(USD) : $580.00

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