Mass spectrometric characterization of organosulfates related to secondary organic aerosol from isoprene.

@article{SafiShalamzari2013MassSC,
  title={Mass spectrometric characterization of organosulfates related to secondary organic aerosol from isoprene.},
  author={Mohammad Safi Shalamzari and Oxana Ryabtsova and Ariane Kahnt and Reinhilde Vermeylen and Marie-France H{\'e}rent and Jo{\"e}lle Quetin-Leclercq and Pieter Van der Veken and Willy Maenhaut and Magda Claeys},
  journal={Rapid communications in mass spectrometry : RCM},
  year={2013},
  volume={27 7},
  pages={
          784-94
        }
}
RATIONALE A considerable fraction of atmospheric particulate fine matter consists of organosulfates, with some of the most polar ones originating from the oxidation of isoprene. Their structural characterization provides insights into the nature of gas-phase precursors as well as into formation pathways. METHODS The structures of unknown polar organosulfates present in ambient particulate fine matter were characterized using liquid chromatography/(-)electrospray ionization mass spectrometry… Expand
Structural characterization of lactone-containing MW 212 organosulfates originating from isoprene oxidation in ambient fine aerosol.
TLDR
The detailed structural characterization of atmospherically-relevant isoprene-derived organosulfates (OSs) with molecular weights (MW) of 212 and six positional isomers of the MW 212 OSs in PM2.5 collected from different sites in Europe and the United States show that despite low solubility of isopane in water, aqueous-phase or multiphase chemistry can play an important role in the formation of OSs from isopene. Expand
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Evidence is provided that the green leaf volatile 3-Z-hexenal serves as a precursor for biogenic secondary organic aerosol through the formation of polar organosulfates (OSs) with molecular weight (MW) 226, along with structurally similar MW 212 C5-OSs, whose biogenic precursor is likely related to isoprene but still remains unknown. Expand
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