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) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Refractometer (REF) (2) Sample Type Plasma (1) Urine (2) Test Area Exposure (1) Therapeutics (2) Test Category Analgesics (2) (-) Anesthetics (2) Biomarkers (2) Depressants (4) Plasticizers (2) Sedative/Hypnotics (15) (-) Volatiles (1) Test Sub-Category Other (3) Test Test Name 0556U Benzidine, Urine 0560P Benzocaine, Plasma 0560U Benzocaine, Urine