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) (2) Enzyme Immunoassay (EIA) (2) Gas Chromatography (GC) (5) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (17) Sample Type Blood (9) Fluid (2) Serum or Plasma (9) Tissue (1) Urine (8) Test Area Therapeutics (29) Test Category (-) Analgesics (29) Antidepressants (6) Antimicrobials (2) Drugs of Abuse (2) Test Sub-Category (-) Opiates/Opioids (29) Your search has returned no tests.