Sars-cov-2 Antigen Test Kit (Colloidal Gold Method)

TEST PRINCIPLE
The kit is immunochromatographic and uses double-antibody sandwich method to detect SARS-CoV-2 antigen. During
detection, the treated samples are loaded into the sample wells of the test card. When the concentration of SARS-CoV-2
antigen in specimen is higher than the minimum detection limit, the viral antigen will form complexes with labeled
antibodies first. Under chromatography, the complexes move forward along the nitrocellulose membrane till captured by
pre-coated monoclonal antibody of SARS-CoV-2 in detection zone on nitrocellulose film (T) to form a pink/purple reaction
line on the detection zone, at this point the result is positive; conversely, if there is no viral antigen or the concentration of
antigen in specimen is below the minimum detection limit, no pink/purple reaction line appears in the detection zone, at this
point the result is negative. Regardless of whether the sample contains viral antigens or not, a pink/purple reaction line will
appear in the quality control zone (C), the pink/purple reaction line that appears in the quality control zone (C) is the
criterion for determining if the chromatography process is normal.