Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> system
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 photooxidat...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2012-12-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | http://www.atmos-chem-phys.net/12/11795/2012/acp-12-11795-2012.pdf |
| _version_ | 1818482157377552384 |
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| author | R. C. Flagan P. J. Ziemann J. A. Thornton R. L. N. Yatavelli K. A. Schilling M. R. Canagaratna C. L. Loza N. L. Ng J. S. Craven L. D. Yee J. H. Seinfeld |
| author_facet | R. C. Flagan P. J. Ziemann J. A. Thornton R. L. N. Yatavelli K. A. Schilling M. R. Canagaratna C. L. Loza N. L. Ng J. S. Craven L. D. Yee J. H. Seinfeld |
| author_sort | R. C. Flagan |
| collection | DOAJ |
| description | 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-NO<sub>x</sub> 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<sub>x</sub> 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. |
| first_indexed | 2024-12-10T11:44:28Z |
| format | Article |
| id | doaj.art-63e35db6d3d9435397ed7969ffcceab0 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-10T11:44:28Z |
| publishDate | 2012-12-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-63e35db6d3d9435397ed7969ffcceab02022-12-22T01:50:09ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242012-12-011224117951181710.5194/acp-12-11795-2012Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> systemR. C. FlaganP. J. ZiemannJ. A. ThorntonR. L. N. YatavelliK. A. SchillingM. R. CanagaratnaC. L. LozaN. L. NgJ. S. CravenL. D. YeeJ. H. SeinfeldPositive 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-NO<sub>x</sub> 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<sub>x</sub> 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.http://www.atmos-chem-phys.net/12/11795/2012/acp-12-11795-2012.pdf |
| spellingShingle | R. C. Flagan P. J. Ziemann J. A. Thornton R. L. N. Yatavelli K. A. Schilling M. R. Canagaratna C. L. Loza N. L. Ng J. S. Craven L. D. Yee J. H. Seinfeld Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> system Atmospheric Chemistry and Physics |
| title | Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> system |
| title_full | Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> system |
| title_fullStr | Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> system |
| title_full_unstemmed | Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> system |
| title_short | Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NO<sub>x</sub> system |
| title_sort | analysis of secondary organic aerosol formation and aging using positive matrix factorization of high resolution aerosol mass spectra application to the dodecane low no sub x sub system |
| url | http://www.atmos-chem-phys.net/12/11795/2012/acp-12-11795-2012.pdf |
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