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) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (54) Sample Type Blood (2) Serum or Plasma (1) Urine (1) Test Area (-) Therapeutics (4) Test Category Analgesics (4) Test Sub-Category Barbiturates (2) (-) Opiates/Opioids (4) Other (5) Phenothiazines (3) Tricyclic (13) Your search has returned no tests.