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) 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 (3) Fluid (1) Serum or Plasma (3) Urine (4) Test Area (-) Drugs of Abuse (11) Newborn Tox (1) Therapeutics (11) Test Category Depressants (13) (-) NPS/Designer Drugs (6) (-) Stimulants (5) Test Sub-Category Opiates/Opioids (6) Other (5) Your search has returned no tests.