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) (3) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (6) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (11) (-) Fluid (3) (-) Serum or Plasma (3) Tissue (2) Urine (3) Test Area Drugs of Abuse (2) Postmortem (3) Therapeutics (1) Test Category Analgesics (1) Drugs of Abuse (2) Therapeutics (3) Test Sub-Category Opiates/Opioids (1) Other (5) Your search has returned no tests.