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) (14) Enzymatic Assay (EZA) (1) Gas Chromatography (GC) (82) Gas Chromatography/Mass Spectrometry (GC/MS) (24) Gas Chromatography/Tandem Mass Spectrometry (GC-MS/MS) (1) Headspace Gas Chromatography (GC) (61) Hematofluorometry (H) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (9) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (8) Refractometer (REF) (4) Spectrophotometry (SP) (2) Sample Type Test Area Drugs of Abuse (3) Impairment (3) Postmortem (3) Test Category Test Sub-Category Your search has returned no tests.