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Cited by 255

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Diffusivity fractionations of HO/HO and HO/HO in air and their implications for isotope hydrology

Barkan, Eugeni, Luz, Boaz·2007·Rapid Communications in Mass Spectrometry

Abstract

We have determined the isotope effects of 17 O and 18 O substitution of 16 O in H 2 O on molecular diffusivities of water vapor in air by the use of evaporation experiments. The derived diffusion fractionation coefficients 17 α diff and 18 α diff are 1.0146 ± 0.0002 and 1.0283 ± 0.0003, respectively. We also determined, for the first time, the ratio ln( 17 α diff )/ln( 18 α diff ) as 0.5185 ± 0.0002. This ratio, which is in excellent agreement with the theoretical value of 0.5184, is significantly smaller than the ratio in vapor‐liquid equilibrium (0.529). We show how this new experimental information gives rise to 17 O excess in meteoric water, and how it can be applied in isotope hydrology. Copyright © 2007 John Wiley & Sons, Ltd.

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Metadata

Authors
Barkan, E., & Luz, B.
Venue
Rapid Communications in Mass Spectrometry
Publisher
Wiley
Published
2007-08-20
Volume
21
Issue
18
Pages
2999-3005
ISSN
  • 0951-4198 (ISSN-L)
  • 1097-0231
OpenAlex
W2016080370
Cited by
255
References
1
FWCI
9.87
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Diffusivity fractionations of HO/HO and HO/HO in air and their implications for isotope hydrology. https://app.cochat.ai/papers/10.1002/rcm.3180
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Barkan, E., & Luz, B. (2007). Diffusivity fractionations of HO/HO and HO/HO in air and their implications for isotope hydrology. Rapid Communications in Mass Spectrometry. https://doi.org/10.1002/rcm.3180

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