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 Blood (1) Serum or Plasma (1) Urine (1) Test Area Drugs of Abuse (20) Exposure (1) Impairment (9) Newborn Tox (1) Postmortem (33) (-) Therapeutics (3) Test Category Sedative/Hypnotics (3) Test Sub-Category Barbiturates (3) Your search has returned no tests.