Oratect Drug Test
The Oratect drug test is based on a competitive immunoassay procedure in which drug derivatives immobilized on the membrane compete with the drugs which may be present in the oral fluid for limited antibody binding sites on the colored colloidal gold antibody conjugate. During a screening, saliva is collected at the collection pad and migrates across the membrane.
This is indicated by the movement of the blue lines. If no drug is present in the oral fluid, the colored colloidal gold antibody conjugate will bind to the drug derivatives on the membrane to form visible bands at specific test regions. Any presence of a colored band at a specific test region indicates a negative result. The absence of a color band at the test region indicates a presumptive positive result for the particular test. In either case, a color band at the control region (C) must appear and it indicates that the test has performed properly. If the control band does not appear, the test results are invalid and must be repeated with a new device.