Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 21
Articles | Volume 22, issue 21
https://doi.org/10.5194/bg-22-6243-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-6243-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 21
Technical note
 | 
30 Oct 2025
Technical note |  | 30 Oct 2025

Technical note: assessing pretreatment approaches for serial pyrolysis-oxidation analysis of sedimentary organic carbon

Songfan He, Huiyuan Yang, and Xingqian Cui

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Short summary
Ramped-temperature pyrolysis/oxidation (RPO) has been recently used to measure organic carbon properties in sediments, but the effects of pretreatment approaches on RPO results are unclear. We studied how acid rinsing and fumigation impact RPO analysis of organic carbon properties. Results show both methods and acid strength influence outcomes, with rinsing preserving natural states better. This research highlights the importance of method choice in accurate carbon analysis.
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