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) (2) Enzyme Immunoassay (EIA) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (8) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (3) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) Urine (1) Test Area (-) Drugs of Abuse (4) Exposure (1) Therapeutics (3) Test Category Depressants (4) Test Sub-Category Opiates/Opioids (2) (-) Other (4) Your search has returned no tests.