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) (1) Enzyme-Linked Immunosorbent Assay (ELISA) (2) Gas Chromatography (GC) (12) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (4) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (47) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type (-) Blood (4) Fluid (1) Serum or Plasma (3) Tissue (1) Urine (3) Test Area (-) Therapeutics (4) Test Category Analgesics (1) Anesthetics (1) Antihistamines (1) Sedative/Hypnotics (1) Test Sub-Category Barbiturates (1) Opiates/Opioids (1) Other (2) Your search has returned no tests.