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) (4) Enzyme-Linked Immunosorbent Assay (ELISA) (4) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (4) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) Sample Type Blood (2) (-) Fluid (4) Serum or Plasma (2) Tissue (3) Urine (3) Test Area Drugs of Abuse (1) Postmortem (3) Test Category Drugs of Abuse (1) Therapeutics (3) Test Sub-Category Barbiturates (1) (-) Other (4) Your search has returned no tests.