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Cited by 174

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Partitioning of atmospherically relevant ions between bulk water and the water/vapor interface

Open access
Pegram, Laurel M., Record, M. Thomas·2006·Proceedings of the National Academy of Sciences

Abstract

Recently, surface-sensitive spectroscopy data and molecular dynamics simulations have generated intense interest in the distribution of electrolyte ions between bulk water and the air/water interface. A partitioning model for cations and anions developed for biopolymer surface is extended here to interpret the effects of selected acids, bases, and salts on the surface tension of water. Data for electrolytes were analyzed by using a lower-bound value for the number of water molecules in the surface region [0.2 H 2 O Å −2 (approximately two layers of water)], obtained by assuming that both Na + and SO 4 2− (i.e., Na 2 SO 4 ) are fully excluded from this region. Surface–bulk partition coefficients of atmospherically relevant anions and the proton are determined. Notably, we find that H + is most strongly surface-accumulated, I − is modestly accumulated, NO 3 − is evenly distributed, and OH − is weakly excluded.

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Metadata

Authors
Pegram, L. M., & Record, M. T.
Venue
Proceedings of the National Academy of Sciences
Published
2006-09-26
Volume
103
Issue
39
Pages
14278-14281
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1992948302
Cited by
174
References
1
FWCI
9.45
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Partitioning of atmospherically relevant ions between bulk water and the water/vapor interface. https://app.cochat.ai/papers/10.1073/pnas.0606256103
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Pegram, L. M., & Record, M. T. (2006). Partitioning of atmospherically relevant ions between bulk water and the water/vapor interface. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0606256103

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