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) (7) Enzyme-Linked Immunosorbent Assay (ELISA) (46) Enzyme Immunoassay (EIA) (13) Gas Chromatography/Mass Spectrometry (GC/MS) (17) Headspace Gas Chromatography (GC) (39) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (15) Sample Type Fluid (4) Tissue (3) Test Area Drugs of Abuse (1) Postmortem (6) Test Category (-) Drugs of Abuse (1) (-) Therapeutics (6) Test Sub-Category Other (7) Your search has returned no tests.