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