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) (27) (-) Enzyme Immunoassay (EIA) (9) Gas Chromatography/Mass Spectrometry (GC/MS) (6) Headspace Gas Chromatography (GC) (15) (-) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (7) Sample Type Blood (2) Serum or Plasma (2) Urine (10) Test Area (-) Drugs of Abuse (14) Impairment (2) Postmortem (3) Test Category Drugs of Abuse (7) Drugs of Abuse, Therapeutics (4) NPS/Designer Drugs (3) Test Sub-Category Opiates/Opioids (3) (-) Other (14) Your search has returned no tests.