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) (12) Enzyme Immunoassay (EIA) (4) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (11) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) (-) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (8) Sample Type Blood (3) Serum or Plasma (2) Urine (3) Test Area Drugs of Abuse (7) Postmortem (1) Test Category Drugs of Abuse (5) (-) Drugs of Abuse, Therapeutics (1) (-) NPS/Designer Drugs (7) Test Sub-Category Opiates/Opioids (3) Other (5) Your search has returned no tests.