Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Enzyme Immunoassay (EIA) (1) (-) Gas Chromatography (GC) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (6) Sample Type Blood (1) (-) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Alcohols (1) Antihistamines (2) (-) Sedative/Hypnotics (2) Volatiles (2) Test Sub-Category Barbiturates (2) Test Test Name 0500SP Barbital, Serum/Plasma 0500U Barbital, Urine