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

He, Songfan; Yang, Huiyuan; Cui, Xingqian

doi:https://doi.org/10.5194/bg-22-6243-2025

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

Supplement

https://doi.org/10.5194/bg-22-6243-2025-supplement

Data sets

Dataset for acidification impacts on sediment decarbonation Songfan He et al. https://doi.org/10.5281/zenodo.14825000

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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.