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/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (20) Sample Type (-) Blood (1) Serum or Plasma (1) (-) Urine (1) Test Area (-) Therapeutics (2) Test Category Sedative/Hypnotics (2) Test Sub-Category Other (2) Test Test Name 4170B Secobarbital, Blood 4170U Secobarbital, Urine