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) (7) Enzymatic Assay (EZA) (1) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (3) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (37) Gas Chromatography/Mass Spectrometry (GC/MS) (6) Gas Chromatography/Tandem Mass Spectrometry (GC-MS/MS) (1) Headspace Gas Chromatography (GC) (6) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (71) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (3) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (4) Refractometer (REF) (2) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) Test Area Drugs of Abuse (3) Test Category Hallucinogens (3) Test Sub-Category Opiates/Opioids (5) (-) Other (3) Your search has returned no tests.