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oa Development of a High Temperature GC-Irms Method for the Stable Isotope Analysis of Peatland Biomarkers
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, IMOG 2025, Sep 2025, Volume 2025, p.1 - 2
Abstract
Summary
Peatlands are crucial carbon stores, but their response to climate change is poorly understood. One way to explore this is through the analysis of biomarkers. BHPs and GDGTs are commonly used biomarkers for studying the microbial activity that governs peatland carbon cycling. However, it is challenging to measure the stable isotope ratios of these large molecules due to analytical limitations. Consequently, we are developing high-temperature GC-IRMS methods to determine the d13C and d2H values of high molecular weight compounds, with a view to more thoroughly unravelling the complexity of peatland carbon cycling and its climatic interactions.
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