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) (4) 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) (1) Sample Type Blood (9) Fluid (2) Meconium (1) (-) Serum or Plasma (3) (-) Tissue (2) Urine (3) Test Area Drugs of Abuse (1) (-) Postmortem (3) (-) Therapeutics (2) Test Category Analgesics (2) Therapeutics (3) Test Sub-Category Opiates/Opioids (2) Other (3) Your search has returned no tests.