This kit adopts colloidal gold-immunochromatography assay .The test card contains:
1. Colloidal gold-labeled anti HCG monoclonal antibodies and quality control antibody complex.
2. Nitrocellulose membranes immobilized with test lines (T line )and one quality control line (C line).
When an appropriate amount of sample is added to the sample well of the test card, the sample will move forward along the test card under capillary action.
If the sample contains persons human chorionic gonadotropin, the HCG will bind to the colloidal gold-labeled anti HCG monoclonal antibodies, and the immune complex will be captured by the monoclonal anti-human antibody immobilized on the nitrocellulose membrane to form a burgundy line , showing that the sample is positive for antigen.