Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (6) Enzyme Immunoassay (EIA) (3) Gas Chromatography (GC) (5) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) Sample Type Blood (9) Fluid (2) Hair (1) Serum or Plasma (7) Tissue (1) Urine (7) Test Area Drugs of Abuse (2) Therapeutics (25) Test Category (-) Analgesics (27) Depressants (3) NPS/Designer Drugs (3) Test Sub-Category (-) Opiates/Opioids (27) Other (5) Your search has returned no tests.