RADIOCARBON DATING OF HIGHLY DEGRADED AND PROBLEMATIC FOSSIL WOOD: VERIFICATION OF THE EFFECTIVENESS OF VARIOUS PREPARATION METHODS

IF 4.7 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-05-16 DOI:10.1017/rdc.2024.49

Maksymilian Jędrzejowski, D. Michczyńska, Marzena Kłusek, A. Michczyński, Fatima Pawełczyk, Natalia Piotrowska, Karin Wyss Heeb, Irka Hajdas

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Abstract

This paper compares various wood pretreatment methods for highly degraded, and problematic fossil wood extracted from the opencast Szczerców site of the Bełchatów Lignite Mine in Central Poland. The study evaluates the pretreatment methods using both large samples (55–255 g, referred to as series A) and small samples (36–150 mg, referred to as series B). Additionally, all preparation methods were applied to medium-sized samples (approximately 3 g, referred to as series C) with solvent washes in the Soxhlet apparatus. Radiocarbon dating was conducted using the LSC technique (subseries A1) and the AMS technique (subseries A2, series B, and C). The effectiveness and utility of each pretreatment protocol were compared based on 14C measurements and FTIR analysis. Through the conducted research and a multi-criteria analysis, the most effective method for preparing old fossil wood was identified. Our experience indicates that an extended, multistage preparation of highly degraded fossil wood samples, with a 14C concentration near the detection limit of the radiocarbon method, may result in a significant increase in 14C content.

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对高度退化和有问题的化石木材进行放射性碳测年：验证各种制备方法的有效性

本文比较了各种木材预处理方法，这些方法适用于从波兰中部贝查图夫褐煤矿露天Szczerców矿区提取的高度退化和有问题的化石木材。本研究使用大样本（55-255 克，称为 A 系列）和小样本（36-150 毫克，称为 B 系列）对预处理方法进行了评估。此外，所有预处理方法都适用于中型样品（约 3 克，称为 C 系列），并在索氏仪器中进行溶剂洗涤。采用 LSC 技术（A1 子系列）和 AMS 技术（A2 子系列、B 系列和 C 系列）进行了放射性碳测年。根据 14C 测量和傅立叶变换红外分析，比较了每种预处理方案的有效性和实用性。通过研究和多标准分析，确定了最有效的古化石木材预处理方法。我们的经验表明，对 14C 浓度接近放射性碳方法检测极限的高度退化化石木材样本进行长时间、多阶段的制备，可显著提高 14C 含量。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.