Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Urine (1) Test Area Exposure (1) Test Category Analgesics (16) Antacids (1) Antianxiety (2) Antiepileptics/Antiseizures (1) Antipsychotics (1) Antispasmodics (2) (-) Industrial/Environmental Toxins (1) Muscle Relaxants (3) Other (1) Pesticides/Insecticides (1) Test Sub-Category Other (1) Test Test Name 1355U o-Toluidine, Urine