为进行准确的放射性碳分析而进行的样品选择、特征描述和处理方法选择--Eth 实验室的见解

IF 2 3区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Radiocarbon Pub Date : 2024-02-14 DOI:10.1017/rdc.2024.12

Irka Hajdas, Giulia Guidobaldi, Negar Haghipour, Karin Wyss

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引用次数: 0

摘要

准确的放射性碳（14C）分析取决于与研究对象相关的碳分离是否成功。14C 测定的过程包括以下步骤：特征描述和样品选择、样品处理、测量和结果评估。在此，我们概述了处理大分子样品的常规方法，并讨论了检测和去除树根、白云石和保存产品污染等具体问题。我们讨论了元素分析（%N、%C）在骨骼制备中的应用以及红外分析在监测样本污染中的应用。我们的观察结果为讨论现有结果和规划未来采样提供了依据。

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SAMPLE SELECTION, CHARACTERIZATION AND CHOICE OF TREATMENT FOR ACCURATE RADIOCARBON ANALYSIS—INSIGHTS FROM THE ETH LABORATORY

Accurate radiocarbon (14C) analysis depends on a successful carbon separation relevant to the studied object. The process of 14C dating involves the following steps: characterization and sample choice, sample treatment, measurements, and evaluation of the results. Here, we provide an overview of conventional approaches to macromolecular samples and address specific issues such as detecting and removing contamination with roots, dolomite, and conservation products. We discuss the application of elemental analysis (%N, %C) in the preparation of bones and the infrared analysis in monitoring the contamination of samples. Our observations provide the basis for the discussions of the existing results and for planning the future sampling.

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来源期刊

Radiocarbon 地学-地球化学与地球物理

CiteScore

16.20

自引率

6.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiocarbon serves as the leading international journal for technical and interpretive articles, date lists, and advancements in 14C and other radioisotopes relevant to archaeological, geophysical, oceanographic, and related dating methods. Established in 1959, it has published numerous seminal works and hosts the triennial International Radiocarbon Conference proceedings. The journal also features occasional special issues. Submissions encompass regular articles such as research reports, technical descriptions, and date lists, along with comments, letters to the editor, book reviews, and laboratory lists.