Biogeosciences
Biogeosciences
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Articles | Volume 17, issue 19
Articles | Volume 17, issue 19
https://doi.org/10.5194/bg-17-4785-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-4785-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 19
Ideas and perspectives
 | 
02 Oct 2020
Ideas and perspectives |  | 02 Oct 2020

Ideas and perspectives: The same carbon behaves like different elements – an insight into position-specific isotope distributions

Yuyang He, Xiaobin Cao, and Huiming Bao

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Latest update: 23 Apr 2025
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Short summary
Different carbon sites in a large organic molecule have different isotope compositions. Different carbon sites may not have the chance to exchange isotopes at all. The lack of appreciation of this notion might be blamed for an unsettled debate on the thermodynamic state of an organism. Here we demonstrate using minerals, N2O, and acetic acid that the dearth of exchange among different carbon sites renders them as independent as if they were different elements in organic molecules.
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