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) Enzyme-Linked Immunosorbent Assay (ELISA) (7) (-) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (34) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (7) Headspace Gas Chromatography (GC) (24) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (73) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (6) (-) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (3) Immunoassay (IA) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (27) Sample Type Blood (1) Serum or Plasma (1) Urine (2) Test Area Drugs of Abuse (3) Therapeutics (1) Test Category NPS/Designer Drugs (3) Stimulants (1) Test Sub-Category Opiates/Opioids (3) Other (1) Your search has returned no tests.