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) Gas Chromatography (GC) (10) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (2) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Sample Type Blood (1) Hair (1) Test Area Drugs of Abuse (1) Exposure (1) Test Category Analgesics (3) (-) Other (1) (-) Volatiles (1) Test Sub-Category Other (2) Your search has returned no tests.