title: Comprehensive two-dimensional gas chromatography in the analysis of urban aerosols.
abstract: Comprehensive two-dimensional gas chromatography utilising a semi-rotating cryogenic modulator was applied to the analysis of urban aerosols. Samples were collected onto glass fibre filters using a high-volume sampler in Helsinki, Finland. Sample preparation included extraction into n-hexane-acetone mixture and clean-up on silver-impregnated silica column. Analyses were performed with GC x GC-FID and GC x GC-QMS equipment. Linearity of the method was good with R2 values greater than 0.994 for all analytes. Polycyclic aromatic hydrocarbons (PAHs) and oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) were identified and quantified in urban particulates. PAH and oxy-PAH concentrations ranged from 0.5 to 5.5 ng/m3.
authors.affiliation: Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, PO Box 55, Helsinki FIN-00014, Finland.
authors.forename: Minna
authors.initials: M
authors.lastname: Kallio
authors.forename: Tuulia
authors.initials: T
authors.lastname: Hyötyläinen
authors.forename: Mari
authors.initials: M
authors.lastname: Lehtonen
authors.forename: Matti
authors.initials: M
authors.lastname: Jussila
authors.forename: Kari
authors.initials: K
authors.lastname: Hartonen
authors.forename: Masahiko
authors.initials: M
authors.lastname: Shimmo
authors.forename: Marja-Liisa
authors.initials: ML
authors.lastname: Riekkola
mesh_terms: D000336:Aerosols / Q000032:analysis*; D002138:Calibration; D002849:Chromatography, Gas / Q000379:methods*; D013058:Mass Spectrometry / Q000379:methods; D014504:Urban Health
chemical_list: D000336:Aerosols