Organosulfates and oxidation products from biogenic hydrocarbons in fine aerosols from a forest in North West Europe during spring

Publication year: 2011
Source: Atmospheric Environment, In Press, Accepted Manuscript, Available online 13 June 2011

Kasper, Kristensen , Marianne, Glasius

Organosulfates of monoterpenes and isoprene, as well as their oxidation products have been identified in biogenic secondary organic aerosols (BSOA) from both laboratory and field studies. Organosulfates provide an interesting coupling between air pollution and formation of low-volatility BSOA.HPLC quadrupole time-of-flight mass spectrometry was used to study polar acidic monoterpene and isoprene oxidation products including pinic acid, pinonic and terpenylic acid along with organosulfates and nitrooxy organosulfates in aerosols from ambient air. The method was first validated by analysis of spiked quartz filters, which showed acceptable recoveries >74% for pinic acid, pinonic acid, camphor sulphonic acid and adipic acid. Acetonitrile…