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) (-) Headspace Gas Chromatography (GC) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Serum or Plasma (1) Tissue (1) Urine (1) Test Area Exposure (1) Therapeutics (1) Test Category Alcohols (1) Analgesics (2) Anesthetics (1) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (2) Antidepressants (2) Antiepileptics/Antiseizures (1) Antithrombotics (1) Benzodiazepines (1) Depressants (1) Diuretics (1) Muscle Relaxants (1) NPS/Designer Drugs (2) (-) Stimulants (1) (-) Volatiles (1) Test Sub-Category Other (1) Sympathomimetic Amines (1) Test Test Name 0541B Benzene, Blood 0610B Benzphetamine as Metabolites, Blood