SARS-CoV-2 (2019-nCoV) Spike S1+S2 ECD Antibody Titer Assay Kit

COVID-19 Spike S1+S2 ECD Research. [ FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES. ] Temporarily not available outside of China.

Intended Use

The kit applies for detecting the level of anti-SARS-CoV-2 (2019-nCoV) Spike S1+S2 ECD antibodies in serum.

Principle of the assay

The principle of the kit is indirect ELISA. SARS-CoV-2 (2019-nCoV) Spike S1+S2 ECD-His Recombiant Protein has been pre-coated onto well plate strips. The samples or control antibody are added to the well, after incubation the wells are washed and a horseradish peroxidase conjugated Goat anti-Human IgG is added. Following a wash, the TMB substrate solution is loaded and color develops in proportion to the amount of antibodies. The reaction is stopped by the addition of a stop solution and the intensity of the color can be measured at 450 nm.

Materials Provided

Components 1 Kit (96 Tests)
Microplate: Pre-coated with SARS-CoV-2 (2019-nCoV) Spike S1+S2 ECD-His Recombiant Protein 1 Plate
HRP-Goat anti-Human IgG 20 μL
Anti-SARS-CoV-2 (2019-nCoV) Spike Antibody (Control) 20 μL
20 × Dilution Buffer 5 mL
20 × Wash Buffer 25 mL
Color Reagent A 12.5 mL
Color Reagent B 12.5 mL
Stop Solution 8 mL


Unopened Kit: Store at 2 - 8℃
Opened/Reconstituted Reagents: Please refer to CoA

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