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) (9) Gas Chromatography (GC) (41) Gas Chromatography/Mass Spectrometry (GC/MS) (13) Headspace Gas Chromatography (GC) (29) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (7) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Refractometer (REF) (2) Sample Type Test Area Test Category Drugs of Abuse (14) Drugs of Abuse, Therapeutics (7) Exposure (1) NPS/Designer Drugs (1) Therapeutics (13) Test Sub-Category Your search has returned no tests.