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) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) Urine (1) Test Area Exposure (2) Test Category Acids (3) Alcohols (3) Drugs of Abuse (3) Drugs of Abuse, Therapeutics (1) (-) Gases (1) (-) Industrial/Environmental Toxins (1) Other (2) Solvents (4) Therapeutics (8) Volatiles (11) Test Sub-Category Hydrocarbons (1) Other (1) Test Test Name 1549U Dichlorobenzidine, Urine 2745B Methane, Blood