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 (8) Serum or Plasma (6) (-) Urine (6) Test Area (-) Drugs of Abuse (6) Test Category NPS/Designer Drugs (6) Test Sub-Category Alkaloids (1) Opiates/Opioids (4) Other (1) Your search has returned no tests.