Abstract
n-Alkanes, polycyclic aromatic hydrocarbons, n-alkanals, 2-alkanones and n-alkanols were efficiently separated from alkanoic acids and then fractionated by flash chromatography on a silica gel column. These compounds were determined by capillary gas chromatography with flame ionization and/or mass spectrometric detection in the selected ion monitoring mode. The recoveries obtained for the whole analytical procedure were 82–91% for n-alkanes, 68–78% for polycyclic aromatic hydrocarbons, 70–75% for n-alkanals and 2-alkanones, 73–76% for n-alkanols and 80–84% for alkanoic acids. This analytical protocol was suitable for the determination of more than 140 compounds on aeolian particles collected on glass-fibre filters.
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