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) (6) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (6) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (39) Sample Type Blood (2) Fluid (1) Serum or Plasma (1) Tissue (1) Urine (1) Test Area Therapeutics (6) Test Category (-) Analgesics (4) (-) Anesthetics (2) Antihistamines (2) Sedative/Hypnotics (3) Solvents (2) Test Sub-Category Opiates/Opioids (4) Other (2) Your search has returned no tests.