Isotopologue Ratios Identify <sup>13</sup> C‐Depleted Biomarkers in Environmental Samples Impacted by Methane Turnover
Our results highlight that the M1/M0 ratio from UHPLC/HRMS measurements can be utilized to evaluate the carbon isotopic fingerprint of non-GC-amenable lipids and to reliably detect lipid biomarkers putatively associated with microbial methane turnover carrying extremely depleted isotopic signatures. This paves the way for a comprehensive exploration of intact lipids associated with microbial methane turnover in environmental samples.
Authors
- Kai‐Uwe Hinrichs (ORCID: https://orcid.org/0000-0002-0739-9291)
- Julius S. Lipp (ORCID: https://orcid.org/0000-0002-4109-3317)
- Janina Groninga
- Min Song (ORCID: https://orcid.org/0000-0002-3291-0282)
Institutions
- University of Bremen (DE)
- University of Toronto (CA)
Publication Details
- Journal
- Rapid Communications in Mass Spectrometry
- Published
- 2025-08-05
- DOI
- https://doi.org/10.1002/rcm.10118
- Citations
- 1
- Primary Topic
- Atmospheric and Environmental Gas Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 4.42
Funders
- Deutsche Forschungsgemeinschaft