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) (3) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Urine (1) Test Area Exposure (1) Test Category Analgesics (28) Antianxiety (3) Antiepileptics/Antiseizures (2) Antipsychotics (4) Drugs of Abuse (1) (-) Industrial/Environmental Toxins (1) Test Sub-Category Other (1) Test Test Name 1355U o-Toluidine, Urine