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Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO_x system

Craven, J. S. and Yee, L. D. and Ng, N. L. and Canagaratna, M. R. and Loza, C. L. and Schilling, K. A. and Yatavelli, R. L. N. and Thornton, J. A. and Ziemann, P. J. and Flagan, R. C. and Seinfeld, J. H. (2012) Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO_x system. Atmospheric Chemistry and Physics, 12 (24). pp. 11795-11817. ISSN 1680-7316. http://resolver.caltech.edu/CaltechAUTHORS:20130124-083937535

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Abstract

Positive matrix factorization (PMF) of high-resolution laboratory chamber aerosol mass spectra is applied for the first time, the results of which are consistent with molecular level MOVI-HRToF-CIMS aerosol-phase and CIMS gas-phase measurements. Secondary organic aerosol was generated by photooxidation of dodecane under low-NOx conditions in the Caltech environmental chamber. The PMF results exhibit three factors representing a combination of gas-particle partitioning, chemical conversion in the aerosol, and wall deposition. The slope of the measured high-resolution aerosol mass spectrometer (HR-ToF-AMS) composition data on a Van Krevelen diagram is consistent with that of other low-NO_x alkane systems in the same O : C range. Elemental analysis of the PMF factor mass spectral profiles elucidates the combinations of functionality that contribute to the slope on the Van Krevelen diagram.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.5194/acp-12-11795-2012DOIArticle
http://www.atmos-chem-phys.net/12/11795/2012/acp-12-11795-2012.htmlPublisherArticle
ORCID:
AuthorORCID
Ng, N. L.0000-0001-8460-4765
Flagan, R. C.0000-0001-5690-770X
Seinfeld, J. H.0000-0003-1344-4068
Alternate Title:Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NOx system
Additional Information:© 2012 Author(s). This work is distributed under the Creative Commons Attribution 3.0 License. Published by Copernicus Publications on behalf of the European Geosciences Union. Received: 7 June 2012; Published in Atmos. Chem. Phys. Discuss.: 6 July 2012; Revised: 26 October 2012; Accepted: 4 December 2012; Published: 17 December 2012. This work was supported by US Department of Energy grant DE-SC 000 6626. Analysis of the MOVI-HRToFCIMS data is supported by a grant to J. A. T. from the US Department of Energy (DOE-ER65318).
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0006626
Department of Energy (DOE)DOE-ER65318
Record Number:CaltechAUTHORS:20130124-083937535
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130124-083937535
Official Citation:Craven, J. S., Yee, L. D., Ng, N. L., Canagaratna, M. R., Loza, C. L., Schilling, K. A., Yatavelli, R. L. N., Thornton, J. A., Ziemann, P. J., Flagan, R. C., and Seinfeld, J. H.: Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NOx system, Atmos. Chem. Phys., 12,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36555
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:24 Jan 2013 22:04
Last Modified:05 Apr 2017 18:48

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