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) (2) Gas Chromatography (GC) (2) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (16) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) Plasma (1) (-) Serum or Plasma (2) Urine (3) Test Area Drugs of Abuse (1) Exposure (1) (-) Therapeutics (2) Test Category Sedative/Hypnotics (2) Test Sub-Category Barbiturates (2) Test Test Name 0810SP Butabarbital, Serum/Plasma 0830SP Butalbital, Serum/Plasma