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) Sample Type (-) Blood (2) Tissue (1) Urine (3) Test Area Exposure (2) Test Category Alcohols (4) Analgesics (6) Anesthetics (2) Antianxiety (2) Antiarrhythmics (2) Anticholinergics (4) Antidepressants (4) Antiepileptics/Antiseizures (2) Antihistamines (3) Antineoplastics (1) Antipsychotics (1) Antithrombotics (3) Antitussives/Cough Suppressants (2) Benzodiazepines (2) Biomarkers (2) Depressants (4) Diuretics (2) Metals/Elements (10) Muscle Relaxants (2) NPS/Designer Drugs (4) Plasticizers (1) Sedative/Hypnotics (10) Stimulants (2) (-) Volatiles (2) Test Sub-Category Other (2) Test Test Name 0541B Benzene, Blood 0835B Butane and Isobutane, Blood