Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5391449 | Chemical Physics Letters | 2008 | 5 Pages |
Abstract
The rapid oxidation of sulfite and/or iodide in the interfacial layers of aqueous microdroplets during brief (â¼1Â ms) exposure to O3(g) are investigated by mass spectrometry of the ejected anions. Iâ partially excludes HSO3- from the interfacial layers of equimolar (Na2SO3Â +Â NaI) microdroplets, where it is oxidized without apparent depletion in a process mediated by a persistent ISO3- intermediate. Present results provide unambiguous evidence of distinct interfacial chemistry in gas-aerosol reactions of atmospheric relevance.
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Authors
S. Enami, C.D. Vecitis, J. Cheng, M.R. Hoffmann, A.J. Colussi,