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) Test Category Alcohols (3) Biomarkers (1) (-) Gases (1) Metals/Elements (12) Pesticides/Insecticides (2) Solvents (1) Volatiles (6) Test Sub-Category Hydrocarbons (1) Test Test Name 2745B Methane, Blood