Articles | Volume 13, issue 10
https://doi.org/10.5194/bg-13-3175-2016
https://doi.org/10.5194/bg-13-3175-2016
Research article
 | 
01 Jun 2016
Research article |  | 01 Jun 2016

2H and 18O depletion of water close to organic surfaces

Guo Chen, Karl Auerswald, and Hans Schnyder

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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (Editor review) (19 May 2016) by Yakov Kuzyakov
AR by Karl Auerswald on behalf of the Authors (19 May 2016)  Author's response    Manuscript
ED: Publish as is (19 May 2016) by Yakov Kuzyakov
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Short summary
Hydrophilic surfaces influence the structure of water close to them and may thus affect the isotope composition of water. Across a wide range of materials, fractionation became linearly more negative with increasing volumetric solid : water ratio and even exceeded −44 ‰ for 2H. This has major implications for the interpretation of the isotopic composition of extracted water, especially when the solid : water ratio is larger than 0.5 or for processes occurring at the solid–water interface.
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