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) (2) Headspace Gas Chromatography (GC) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (1) Sample Type Blood (1) (-) Serum or Plasma (2) Urine (2) Test Area Test Category Test Sub-Category Test Test Name 0801SP Buprenorphine and Metabolite - Free (Unconjugated), Serum/Plasma 5113SP Buprenorphine and Metabolite - Free (Unconjugated) Confirmation, Serum/Plasma