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) (54) Enzyme Immunoassay (EIA) (12) Gas Chromatography/Mass Spectrometry (GC/MS) (8) Headspace Gas Chromatography (GC) (32) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (15) Spectrophotometry (SP) (1) Sample Type Fluid (3) Tissue (3) Test Area Drugs of Abuse (1) Postmortem (5) Test Category Drugs of Abuse (1) Therapeutics (5) Test Sub-Category Cannabinoids (2) (-) Other (6) Your search has returned no tests.