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) (4) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (5) Serum or Plasma (4) (-) Urine (4) Test Area (-) Drugs of Abuse (4) Test Category NPS/Designer Drugs (4) Test Sub-Category Alkaloids (1) Opiates/Opioids (3) Your search has returned no tests.