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) (5) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (35) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (7) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (5) Headspace Gas Chromatography (GC) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (76) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (6) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (23) Sample Type Blood (3) Hair (1) Urine (1) Test Area (-) Drugs of Abuse (4) (-) Exposure (1) Test Category Analgesics (3) Other (1) Volatiles (1) Test Sub-Category Opiates/Opioids (3) Other (2) Your search has returned no tests.