Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (13) Sample Type Blood (15) Fluid (7) Oral Fluid (Saliva) (1) (-) Serum or Plasma (14) Tissue (6) Urine (14) Test Area Therapeutics (14) Test Category (-) Analgesics (14) Depressants (1) Test Sub-Category (-) Opiates/Opioids (14) Other (4) Your search has returned no tests.