Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (6) Enzyme-Linked Immunosorbent Assay (ELISA) (7) (-) Enzyme Immunoassay (EIA) (3) Gas Chromatography (GC) (40) Gas Chromatography/Mass Spectrometry (GC/MS) (12) Headspace Gas Chromatography (GC) (47) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (1) Refractometer (REF) (2) Sample Type Urine (3) Test Area Drugs of Abuse (3) Test Category Drugs of Abuse (3) (-) Drugs of Abuse, Therapeutics (3) Therapeutics (2) Test Sub-Category Other (3) Your search has returned no tests.