title: Fractionation, chemical analysis, and mutagenicity testing of low-Btu coal gasifier tar.
abstract: A tar from a low-Btu coal gasifier was subjected to parallel fractionation, chemical analysis, and bacterial mutagenicity (Salmonella) assay. Like other coal-derived tars, it was a complex mixture containing some high-molecular-weight material and several classes of organic compounds as major constituents. The results of bacterial mutagenicity testing of fractions and subfractions of the tar suggest that neutral nitrogen-containing compounds, phenols, organic bases, polycyclic aromatic hydrocarbons, and some uncharacterized high-molecular-weight materials are mutagenic to Salmonella and therefore are potentially mutagenic in higher systems.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002850:Chromatography, Gel / Q000379:methods; D003033:Coal Tar / Q000032:analysis / Q000302:isolation & purification* / Q000494:pharmacology; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D009152:Mutagenicity Tests; D012486:Salmonella typhimurium / Q000187:drug effects
chemical_list: D003033:Coal Tar