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) (1) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (12) Sample Type Blood (2) Hair (1) Urine (1) Test Area Drugs of Abuse (4) Test Category (-) Analgesics (3) Biomarkers (6) (-) Other (1) Volatiles (1) Test Sub-Category Opiates/Opioids (3) Other (1) Your search has returned no tests.