Inside versus Outside: Ion Redistribution in Nitric Acid Reacted Sea Spray Aerosol Particles as Determined by Single Particle Analysis
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- 作者：Andrew P. Ault ; Timothy L. Guasco ; Olivia S. Ryder ; Jonas Baltrusaitis ; Luis A. Cuadra-Rodriguez ; Douglas B. Collins ; Matthew J. Ruppel ; Timothy H. Bertram ; Kimberly A. Prather ; Vicki H. Grassian
- 刊名：Journal of the American Chemical Society
- 出版年：2013
- 出版时间：October 2, 2013
- 年：2013
- 卷：135
- 期：39
- 页码：14528-14531
- 全文大小：314K
- 年卷期：v.135,no.39(October 2, 2013)
- ISSN：1520-5126
文摘
Single particle analysis of individual sea spray aerosol particles shows that cations (Nap>+ p>, Kp>+ p>, Mgp>2+ p>, and Cap>2+ p>) within individual particles undergo a spatial redistribution after heterogeneous reaction with nitric acid, along with the development of a more concentrated layer of organic matter at the surface of the particle. These data suggest that specific ion and aerosol pH effects play an important role in aerosol particle structure in ways that have not been previously recognized.