How Identification metabolite narcotic use immuno assay methode?

Immunoassay methods for identifying narcotic metabolites involve using antibodies that specifically bind to the target substances or their metabolites in biological samples, such as urine or blood. These assays typically employ techniques like enzyme-linked immunosorbent assay (ELISA) or radioimmunoassay (RIA) to detect and quantify the presence of narcotics. The binding of the metabolite to the antibody produces a measurable signal, indicating the presence and concentration of the narcotic in the sample. This method is widely used for initial screening due to its speed, sensitivity, and cost-effectiveness.