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Authors: Homann, Julia
Zirbes, Michael
Arndt-Engelbart, Meiko
Scholz, Denis
Waldvogel, Siegfried R.
Hoffmann, Thorsten
Title: Development of a method for anodic degradation of lignin for the analysis of paleo-vegetation proxies in speleothems
Online publication date: 24-Oct-2022
Year of first publication: 2022
Language: english
Abstract: Exploring the past climate: An electrochemical method for the anodic depolymerization of lignin in speleothems was developed. The obtained lignin oxidation products (LOPs) were used as paleo-vegetation markers and analyzed via UHPLC-HRMS. Here, the reported electrochemical protocol delivered comparable or even higher LOP concentrations than well-established oxidation methods utilizing CuO and/or CuSO4. (...) Here we present an electrochemical method for the anodic oxidation and subsequent degradation of lignin in speleothems to utilize the resulting lignin oxidation products (LOPs) as paleo-vegetation markers. LOPs were analyzed using an ultra-high performance liquid chromatography (UHPLC) system coupled to a high-resolution mass spectrometer (HRMS). The method presented here achieved comparable or even higher LOP concentrations than established CuO and CuSO4 oxidation methods. The method represents a new tool for the analysis and reconstruction of paleo-vegetation and has the potential to be applied to other climate archives.
DDC: 540 Chemie
540 Chemistry and allied sciences
550 Geowissenschaften
550 Earth sciences
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 09 Chemie, Pharmazie u. Geowissensch.
Place: Mainz
Version: Published version
Publication type: Zeitschriftenaufsatz
License: CC BY-NC-ND
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Journal: ChemElectroChem
Pages or article number: e202101312
Publisher: Wiley-VCH
Publisher place: Weinheim
Issue date: 2022
ISSN: 2196-0216
Publisher DOI: 10.1002/celc.202101312
Appears in collections:JGU-Publikationen

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