Description:The hydrocarbons -- Alcohols and phytosterols -- Aldehydes and ketones -- Carboxylic acids -- The esters -- The lactones -- Anhydrides -- Carbohydrates and their derivatives -- Phenols and quinones -- The ethers -- Nitriles -- Acyclic amines -- Amides -- Imides -- N-nitrosamines -- Nitroalkanes, nitroarenes, and nitrophenols -- Nitrogen heterocyclic components -- Miscellaneous components -- Fixed and variable gases -- Metallic and nonmetallic elements, isotopes, ions, and salts -- Pesticides and growth regulators -- Genes, nucleotides, and enzymes -- ''Hoffmann analytes'' -- Tobacco and/or tobacco smoke components used as tobacco ingredients -- Pryolysis -- Carcinogens, tumorigens, and mutagens vs. anticarcinogens, inhibitors, and antimutagens -- Free radicals -- Summary