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/Mass Spectrometry (GC/MS) (1) Sample Type Blood (1) Test Area (-) Exposure (1) Therapeutics (3) Test Category Alcohols (3) (-) Gases (1) Solvents (2) Volatiles (4) Test Sub-Category Hydrocarbons (1) Test Test Name 2745B Methane, Blood