Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (2) Enzyme Immunoassay (EIA) (2) Gas Chromatography (GC) (24) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (3) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (6) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (71) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (6) Sample Type Blood (3) Serum or Plasma (3) Urine (3) Test Area Exposure (11) (-) Therapeutics (9) Test Category Analgesics (3) Antianxiety (3) Sedative/Hypnotics (3) Test Sub-Category Opiates/Opioids (3) Other (6) Your search has returned no tests.