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) (1) Sample Type Blood (19) Fluid (1) Hair (1) Meconium (2) Serum or Plasma (24) (-) Tissue (1) Urine (14) Test Area Test Category Test Sub-Category Test Test Name 8722TI Methadone and Metabolite, Tissue