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Proceedings Paper

Uptake of gases by aqueous solutions probed by surface nonlinear optical spectroscopy
Author(s): Robert Doolen; Douglas Ray
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Paper Abstract

Surface second harmonic generation is used to investigate the behavior of solute molecules at the liquid water/vapor interface. This surface specific technique allows the determination of the relative energetics between molecules adsorbed at the interface and solute molecules in the bulk, as well as the energy barrier between them. Measurements of the surface excess of dimethyl sulfoxide on aqueous solutions are reported. These data, in combination with the results of other techniques, facilitate development of models for the mechanism of the uptake of gases by aqueous solutions. The results are discussed in reference to current models of the uptake of gases by aqueous solutions and their relevance to heterogeneous atmospheric processes.

Paper Details

Date Published: 25 September 1995
PDF: 7 pages
Proc. SPIE 2547, Laser Techniques for Surface Science II, (25 September 1995); doi: 10.1117/12.221490
Show Author Affiliations
Robert Doolen, Pacific Northwest Lab. (United States)
Douglas Ray, Pacific Northwest Lab. (United States)

Published in SPIE Proceedings Vol. 2547:
Laser Techniques for Surface Science II
Janice M. Hicks; Wilson Ho; Hai-Lung Dai, Editor(s)

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