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) (38) Enzyme Immunoassay (EIA) (13) Gas Chromatography/Mass Spectrometry (GC/MS) (11) Headspace Gas Chromatography (GC) (27) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Spectrophotometry (SP) (1) 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.