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) (1) Enzyme-Linked Immunosorbent Assay (ELISA) (2) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (26) Gas Chromatography/Mass Spectrometry (GC/MS) (11) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (28) High Performance Liquid Chromatography/Tandem Quadrupole Time of Flight Mass Spectrometry. (4) (-) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (3) Sample Type Blood (1) Serum or Plasma (1) Urine (1) Test Area Drugs of Abuse (3) Test Category Hallucinogens (3) Test Sub-Category Opiates/Opioids (3) (-) Other (3) Your search has returned no tests.