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) (7) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (24) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (5) Headspace Gas Chromatography (GC) (13) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (65) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (4) (-) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (3) Immunoassay (IA) (1) Sample Type Blood (2) Serum or Plasma (2) Urine (2) Test Area (-) Drugs of Abuse (3) Exposure (27) (-) Therapeutics (3) Test Category Antidepressants (3) NPS/Designer Drugs (3) Test Sub-Category Opiates/Opioids (3) Other (3) Your search has returned no tests.