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) (1) Enzyme-Linked Immunosorbent Assay (ELISA) (25) (-) Enzyme Immunoassay (EIA) (8) Gas Chromatography/Mass Spectrometry (GC/MS) (10) Headspace Gas Chromatography (GC) (16) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (4) Sample Type Urine (8) Test Area (-) Drugs of Abuse (8) Impairment (4) Postmortem (5) Test Category Drugs of Abuse (4) Drugs of Abuse, Therapeutics (4) Test Sub-Category Barbiturates (1) (-) Other (8) Your search has returned no tests.