This test requires professional lab infrastructure and staff and must be ordered and administered by medical professionals. The test cannot be performed by private individuals and we do not sell the kits to such subjects. If you suspect you are infected with SARS-CoV-2, please contact your healthcare provider.

For quantitative determination of SARSCoV-2 Spike S1 protein in serum, plasma, or another specimen.

SARS-CoV-2 S1 protein IgG ELISA Kit is a highly sensitive and specific immunoassay developed by ImmunoDiagnostics for the precision detection and quantitative measurement of IgG class antibodies against the spike S1 protein of SARS-CoV-2 virus in human blood samples in vitro.


Each kit is sufficient for 96 tests and contains the following components:

One aluminum pouch with a Microwell plate (12 strips of 8 wells each) coated with SARS- CoV-2 S1 protein, sealed. The microwell strips can be used separately.

10 × Wash buffer, 1 x -40 ml

5 × Assay buffer, 1 x 20 ml

100 × Detection antibody solution: HRP-conjugated anti-human IgG, 1 x 0.12 ml

10 × Standard: Humanized anti-S1 mAb, 1 x 50 μL

Substrate solution, 1 x 12 ml, ready for use

Stop solution, 1 x 12 ml, ready for use

Results in under 2 hours

Controls included

Calibrated with WHO International standard reference serum to ensure accurate quantification

Widely used for evaluation of COVID-19 vaccine effectiveness