Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (13) (-) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (6) Sample Type Blood (7) Serum or Plasma (6) Urine (6) Test Area (-) Drugs of Abuse (19) Postmortem (1) Test Category NPS/Designer Drugs (19) Test Sub-Category Alkaloids (3) Opiates/Opioids (12) Other (4) Your search has returned no tests.