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) (3) Gas Chromatography (GC) (4) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) Sample Type Blood (3) (-) Serum or Plasma (3) Urine (3) Test Area Drugs of Abuse (2) Therapeutics (1) Test Category Analgesics (1) Depressants (1) Hallucinogens (1) Test Sub-Category Opiates/Opioids (2) Other (1) Your search has returned no tests.