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) (3) Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (8) Fluid (2) Hair (1) (-) Serum or Plasma (7) Tissue (1) Urine (6) Test Area (-) Therapeutics (7) Test Category (-) Analgesics (7) Test Sub-Category (-) Opiates/Opioids (7) Your search has returned no tests.