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) (8) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (4) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (9) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category Antidepressants (2) Test Sub-Category Opiates/Opioids (1) (-) Tricyclic (2) Test Test Name 8706B Protriptyline, Blood 8706SP Protriptyline, Serum/Plasma