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) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Urine (1) Test Area Exposure (1) Test Category Acids (3) Alcohols (3) Drugs of Abuse (4) Drugs of Abuse, Therapeutics (1) Gases (1) (-) Industrial/Environmental Toxins (1) Metals/Elements (3) NPS/Designer Drugs (1) Other (2) Pesticides/Insecticides (3) Solvents (4) Therapeutics (13) Volatiles (13) Test Sub-Category Other (1) Test Test Name 1549U Dichlorobenzidine, Urine