Inside versus outside: Ion redistribution in nitric acid reacted sea spray aerosol particles as determined by single particle analysis

TitleInside versus outside: Ion redistribution in nitric acid reacted sea spray aerosol particles as determined by single particle analysis
Publication TypeJournal Article
Year of Publication2013
AuthorsAult AP, Guasco TL, Ryder OS, Baltrusaitis J, Cuadra-Rodriguez LA, Collins DB, Ruppel MJ, Bertram TH, Prather KA, Grassian VH
JournalJournal of the American Chemical Society
Volume135
Pagination14528-14531
Date Published2013/10
Type of ArticleArticle
ISBN Number0002-7863
Accession NumberWOS:000326300500016
Keywordsatmospherically relevant ions; chemistry; frequency generation spectroscopy; interfaces; morphology; nacl; organization; sensitive sum-frequency; size; water
Abstract

Single particle analysis of individual sea spray aerosol particles shows that cations (Na+, K+, Mg2+, and Ca2+) 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.
DOI10.1021/ja407117x
Short TitleJ. Am. Chem. Soc.
Integrated Research Themes: 
Earth and Planetary Chemistry
Global Change
Student Publication: 
No