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) (2) Enzyme-Linked Immunosorbent Assay (ELISA) (3) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (27) Gas Chromatography/Mass Spectrometry (GC/MS) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (67) Sample Type Test Area Drugs of Abuse (5) Impairment (5) Postmortem (6) Test Category Test Sub-Category Your search has returned no tests.