Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) 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) (14) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (5) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) Urine (1) Test Area Therapeutics (4) Test Category Analgesics (4) Test Sub-Category Barbiturates (3) (-) Opiates/Opioids (4) Other (6) Your search has returned no tests.