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) (20) Gas Chromatography (GC) (31) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (4) Headspace Gas Chromatography (GC) (14) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (50) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (8) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (6) Immunoassay (IA) (1) Spectrofluorometry (SF) (1) Spectrophotometry (SP) (1) Sample Type (-) Blood (2) Urine (2) Test Area Therapeutics (2) Test Category Antianxiety (1) Antidepressants (1) Test Sub-Category Other (1) Tricyclic (1) Test Test Name 8704B Desipramine, Blood 8705B Doxepin and Metabolite, Blood