title: Chemical analysis and biological testing of a polar fraction of ambient air, diesel engine, and gasoline engine particulate extracts.
abstract: Extracts of gasoline and diesel vehicle exhaust and ambient air particles were fractionated into five fractions according to polarity on a silica gel column. Two medium polar fractions showing high genotoxic activity in the Ames test were further subfractionated, using normal-phase high-performance liquid chromatography. Chemical analyses were performed by means of gas chromatography combined with mass spectrometry and flame ionization and detection. The crude extracts, fractions, and subfractions were assayed with the Ames test, with and without S9, and the most abundant compounds in the subfractions are reported.
authors.affiliation: Laboratory for Analytical Environmental Chemistry, University of Stockholm, Solna, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Strandell
authors.forename: S
authors.initials: S
authors.lastname: Zakrisson
authors.forename: T
authors.initials: T
authors.lastname: Alsberg
authors.forename: R
authors.initials: R
authors.lastname: Westerholm
authors.forename: L
authors.initials: L
authors.lastname: Winquist
authors.forename: U
authors.initials: U
authors.lastname: Rannug
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000633:toxicity*; D005591:Chemical Fractionation; D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D005742:Gasoline; D006838:Hydrocarbons / Q000032:analysis / Q000633:toxicity; D009152:Mutagenicity Tests; D009153:Mutagens / Q000032:analysis* / Q000633:toxicity; D012486:Salmonella typhimurium / Q000187:drug effects; D001335:Vehicle Emissions / Q000032:analysis* / Q000633:toxicity*
chemical_list: D000393:Air Pollutants; D005742:Gasoline; D006838:Hydrocarbons; D009153:Mutagens; D001335:Vehicle Emissions