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) (4) Enzyme-Linked Immunosorbent Assay (ELISA) (30) Gas Chromatography/Mass Spectrometry (GC/MS) (7) Headspace Gas Chromatography (GC) (17) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (6) Spectrophotometry (SP) (1) Sample Type (-) Fluid (4) Tissue (3) Test Area Drugs of Abuse (1) Postmortem (3) Test Category Drugs of Abuse (1) Therapeutics (3) Test Sub-Category Other (4) Your search has returned no tests.