| Studies of single aerosol particles containing malonic acid, glutaric acid, and their mixtures with sodium chloride. I. Hygroscopic growth. | |
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MedLine Citation:
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PMID: 20361768 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We describe a newly constructed electrodynamic balance with which to measure the relative mass of single aerosol particles at varying relative humidity. Measurements of changing mass with respect to the relative humidity allow mass (m) growth factors (m(aqueous)/m(dry)) and diameter (d) growth factors (d(aqueous)/d(dry)) of the aerosol to be determined. Four aerosol types were investigated: malonic acid, glutaric acid, mixtures of malonic acid and sodium chloride, and mixtures of glutaric acid and sodium chloride. The mass growth factors of the malonic acid and glutaric acid aqueous phase aerosols, at 85% relative humidity, were 2.11 +/- 0.08 and 1.73 +/- 0.19, respectively. The mass growth factors of the mixed organic/inorganic aerosols are dependent upon the molar fraction of the individual components. Results are compared with previous laboratory determinations and theoretical predictions. |
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Authors:
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Francis D Pope; Ben J Dennis-Smither; Paul T Griffiths; Simon L Clegg; R Anthony Cox |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The journal of physical chemistry. A Volume: 114 ISSN: 1520-5215 ISO Abbreviation: J Phys Chem A Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-22 Completed Date: 2010-07-12 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9890903 Medline TA: J Phys Chem A Country: United States |
Other Details:
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Languages: eng Pagination: 5335-41 Citation Subset: IM |
Affiliation:
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Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK. fdp21@cam.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aerosols
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chemistry* Glutarates / chemistry* Malonates / chemistry* Particle Size Sodium Chloride / chemistry* Wettability |
| Chemical | |
Reg. No./Substance:
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0/Aerosols; 0/Glutarates; 0/Malonates; 110-94-1/glutaric acid; 141-82-2/malonic acid; 7647-14-5/Sodium Chloride |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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