Gentaur's Products: Quality diagnostic kits, Enzymatic Assays, ELISA Kits, One-Step Rapid Tests and Chemistry Reagents

The Rapid COC test card is an immunochromatography based one step in vitro test. It is designed for qualitative determination of Cocaine’s metabolite, benzoylecgonine in human urine specimens above a cut-off level of 300 ng/ml. This assay may be used in the point of care setting. The Rapid COC test card is based on the principle of specific immunochemical reaction between antibodies and antigens to analyze particular compounds in human urine specimen. The assay relies on the competition for binding antibody between drug conjugate and free drug which may be present in the urine specimen being tested. When drug is present in the urine specimen, it competes with drug conjugate for the limited amount of antibody-dye conjugate. When the amount of drug is equal or more than the cut-off, 300 ng/ml, it will prevent the binding of drug conjugate to the antibody. Therefore, a positive urine specimen will not show a colored band on the test line zone, indicating a positive result, while the presence of a colored band indicates a negative result. A control line is present in the test window to work as procedural control. This colored band should always appear on the control line zone if the test device is stored in good condition and the test is performed appropriately.