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) (9) Enzymatic Assay (EZA) (1) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (2) (-) Enzyme Immunoassay (EIA) (2) Gas Chromatography (GC) (32) Gas Chromatography/Mass Spectrometry (GC/MS) (7) Gas Chromatography/Tandem Mass Spectrometry (GC-MS/MS) (1) Headspace Gas Chromatography (GC) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (97) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (5) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (11) Refractometer (REF) (2) Sample Type Blood (3) Fluid (2) (-) Serum or Plasma (2) Tissue (1) (-) Urine (2) Test Area Drugs of Abuse (2) Therapeutics (2) Test Category Analgesics (2) Hallucinogens (2) Test Sub-Category Opiates/Opioids (2) Other (2) Your search has returned no tests.