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) (3) Enzyme Immunoassay (EIA) (3) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (3) Sample Type Blood (12) Fluid (5) Serum or Plasma (4) Tissue (4) (-) Umbilical Cord (1) (-) Urine (5) Test Area Drugs of Abuse (2) Newborn Tox (1) Postmortem (2) Therapeutics (1) Test Category Analgesics (1) Drugs of Abuse (2) NPS/Designer Drugs (1) Therapeutics (2) Test Sub-Category Opiates/Opioids (2) Other (4) Your search has returned no tests.