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Organosulfate formation during the uptake of pinonaldehyde on acidic sulfate aerosols
Author(s) -
Liggio John,
Li ShaoMeng
Publication year - 2006
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2006gl026079
Subject(s) - sulfate , aerosol , mass spectrometry , mass fraction , environmental chemistry , chemistry , mass spectrum , sulfate aerosol , mass concentration (chemistry) , inorganic chemistry , chromatography , organic chemistry
Organosulfates are observed in studies of pinonaldehyde reactions with acidic sulfate aerosols using aerosol mass spectrometry, during which a significant fraction of the pinonaldehyde reaction products were found to consist of organosulfate compounds that account for 6–51% of the initial SO 4 = mass. Resultant aerosol mass spectra were consistent with proposed sulfate ester mechanisms, which likely form stable products. The existence of organosulfates was also confirmed in studies of the reaction system in bulk solution. The formation of organosulfates suggests that conventional inorganic SO 4 = chemical analysis may underestimate total SO 4 = mass in ambient aerosols.