| Evidence for the existence of organosulfates from beta-pinene ozonolysis in ambient secondary organic aerosol. | |
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MedLine Citation:
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PMID: 17969680 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The formation of organosulfates from the gas-phase ozonolysis of beta-pinene in the presence of neutral or acidic sulfate particles was investigated in a series of indoor aerosol chamber experiments. The organosulfates were analyzed using high-performance liquid chromatography (LC) coupled to electrospray ionization-time-of-flight mass spectrometry (MS) in parallel to ion trap MS. Organosulfates were only found in secondary organic aerosol from beta-pinene ozonolysis in the presence of acidic sulfate seed particles. One of the detected organosulfates also occurred in ambient aerosol samples that were collected at a forest site in northeastern Bavaria, Germany. beta-Pinene oxide, an oxidation product in beta-pinene/O3 and beta-pinene/NO3 reactions, is identified as a possible precursor for the beta-pinene-derived organosulfate. Furthermore, several nitroxy-organosulfates originating from monoterpenes were found in the ambient samples. These nitroxy-organosulfates were only detected in the nighttime samples, suggesting a role for nighttime chemistry in their formation. Their LC/MS chromatographic peak intensities suggest that they represent an important fraction of the organic mass in ambient aerosols, especially at night. |
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Authors:
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Yoshiteru Iinuma; Conny Müller; Torsten Berndt; Olaf Böge; Magda Claeys; Hartmut Herrmann |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Environmental science & technology Volume: 41 ISSN: 0013-936X ISO Abbreviation: Environ. Sci. Technol. Publication Date: 2007 Oct |
Date Detail:
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Created Date: 2007-10-30 Completed Date: 2008-01-24 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0213155 Medline TA: Environ Sci Technol Country: United States |
Other Details:
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Languages: eng Pagination: 6678-83 Citation Subset: IM |
Affiliation:
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Leibniz-Institut für Troposphärenforschung, Permoserstrasse 15, D-04318 Leipzig, Germany. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aerosols Air Pollutants / chemistry* Bicyclo Compounds / chemistry* Monoterpenes / chemistry* Oxidants / chemistry* Ozone / chemistry* Sulfates / chemistry* Sulfuric Acids / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Aerosols; 0/Air Pollutants; 0/Bicyclo Compounds; 0/Monoterpenes; 0/Oxidants; 0/Sulfates; 0/Sulfuric Acids; 10028-15-6/Ozone; 127-91-3/beta-pinene; 7664-93-9/sulfuric acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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