The Difference Between Immunoassay and Chromatography Testing

Two words you are likely to run into a lot when discussing drug testing are immunoassay and chromatography. But, what do they mean and how do they relate to drug testing? Immunoassay Immunoassays are antibodies that specifically bind to drugs and their metabolites in urine and other bodily fluids. Metabolites, by the way, are the […]