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) (2) Enzyme-Linked Immunosorbent Assay (ELISA) (5) Gas Chromatography/Mass Spectrometry (GC/MS) (2) 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 (12) Fluid (3) Meconium (2) (-) Serum or Plasma (4) (-) Tissue (2) Urine (6) Test Area Drugs of Abuse (1) Postmortem (3) Therapeutics (2) Test Category Analgesics (2) Drugs of Abuse (1) Therapeutics (3) Test Sub-Category Opiates/Opioids (2) Other (4) Your search has returned no tests.