Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (45) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (4) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (4) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (58) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (4) Immunoassay (IA) (1) Spectrofluorometry (SF) (1) Spectrophotometry (SP) (1) Sample Type Urine (1) Test Area Drugs of Abuse (4) (-) Exposure (1) Impairment (3) Test Category Industrial/Environmental Toxins (1) Test Sub-Category Other (1) Test Test Name 1549U Dichlorobenzidine, Urine