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) (5) (-) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (3) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) Urine (2) Test Area Therapeutics (5) Test Category Analgesics (5) Test Sub-Category Barbiturates (3) (-) Opiates/Opioids (5) Other (13) Your search has returned no tests.