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) (8) Enzyme Immunoassay (EIA) (4) Gas Chromatography (GC) (5) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) Sample Type Blood (4) Serum or Plasma (4) Test Area Drugs of Abuse (2) Therapeutics (6) Test Category (-) Analgesics (6) (-) Depressants (2) Test Sub-Category (-) Opiates/Opioids (8) Your search has returned no tests.