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) (16) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (4) Spectrophotometry (SP) (1) Sample Type Urine (1) Test Area Drugs of Abuse (7) (-) Exposure (1) Therapeutics (28) Test Category Industrial/Environmental Toxins (1) Test Sub-Category Anticoagulants (2) Herbicides (2) (-) Other (1) Test Test Name 1549U Dichlorobenzidine, Urine