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) (1) Gas Chromatography (GC) (5) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (4) Sample Type Hair (1) Test Area Drugs of Abuse (1) Test Category Analgesics (3) (-) Other (1) Volatiles (1) Test Sub-Category Other (1) Your search has returned no tests.