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) (4) Enzyme Immunoassay (EIA) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Headspace Gas Chromatography (GC) (3) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (6) Fluid (1) Serum or Plasma (2) (-) Tissue (1) (-) Urine (3) Test Area Postmortem (4) Test Category Analgesics (1) Drugs of Abuse (2) (-) Therapeutics (4) Test Sub-Category Other (4) Your search has returned no tests.