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) (10) Enzyme Immunoassay (EIA) (5) Gas Chromatography (GC) (31) Gas Chromatography/Mass Spectrometry (GC/MS) (13) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (35) High Performance Liquid Chromatography/Tandem Quadrupole Time of Flight Mass Spectrometry. (4) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (6) Sample Type Blood (5) Serum or Plasma (5) Test Area Drugs of Abuse (4) Therapeutics (6) Test Category Analgesics (6) Depressants (2) Stimulants (2) Test Sub-Category Cannabinoids (3) (-) Opiates/Opioids (8) (-) Other (2) Your search has returned no tests.