Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Enzymatic Assay (EZA) (1) Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) Fat (1) Serum or Plasma (3) Tissue (1) (-) Urine (3) Test Area Exposure (3) Test Category Analgesics (6) Antianxiety (1) Antispasmodics (1) (-) Industrial/Environmental Toxins (1) Muscle Relaxants (1) (-) Other (2) Test Sub-Category Other (3) Test Test Name 1352U o-Cresol, Urine 1355U o-Toluidine, Urine 3250U Oxalate, Urine