RETREATMENT OF BONE MATERIAL IN THE GLIWICE RADIOCARBON LABORATORY USING ULTRAFILTRATION

IF 2 3区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Radiocarbon Pub Date : 2024-03-19 DOI:10.1017/rdc.2024.32

Fatima Pawełczyk, Magdalena Niedziałkowska, Sławomira Pawełczyk, Natalia Piotrowska, Maciej Sykut

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引用次数: 0

Abstract

Preparation of bones for radiocarbon (14C) dating is still quite a challenge for researchers. The methods are being tested and improved, to increase reliability of dating results and to verify the previous ones. In this work, a set of gelatine samples, extracted from Cervus elaphus and Cervus canadensis bones from various sites in Europe and a set of human bones from archaeological sites in Poland were subjected to retreatment using ultrafiltration in Gliwice Radiocarbon Laboratory. The tested samples represent a wide range of ages, from older than 40,000 14C years BP to modern. The prepared material was subjected to the measurement of C/N atomic ratios and 14C dating using the accelerator mass spectrometry (AMS) technique. Also, the stable isotopes (δ13C and δ15N) values were determined. In a few cases ultrafiltration allows to improve gelatine quality for long-stored samples, by increasing the %C and %N as well as decreasing C/Nat ratios. Nevertheless, this effect was not observed for majority of the samples. Remeasurements of long-term stored samples give mostly the same 14C ages for ultrafiltered ones and for those without ultrafiltration.

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格利维采放射性碳实验室利用超滤技术对骨材料进行再处理

对研究人员来说，准备用于放射性碳（14C）测年的骨骼仍然是一项相当大的挑战。为了提高测年结果的可靠性并验证以前的测年结果，我们正在测试和改进测年方法。在这项工作中，格利维采放射性碳实验室使用超滤技术对从欧洲不同遗址的鹿和鹿骨中提取的一系列明胶样本以及从波兰考古遗址中提取的一系列人类骨骼进行了再处理。测试样本代表了从公元前 40,000 14C 年到现代的广泛年龄段。对制备的材料进行了 C/N 原子比测量，并使用加速器质谱（AMS）技术进行了 14C 测定。此外，还测定了稳定同位素（δ13C 和 δ15N）值。在少数情况下，超滤可以通过提高 C 和 N 的百分比以及降低 C/Nat 比率来改善长期储存样品的明胶质量。不过，大多数样品都没有观察到这种效果。对长期储存的样本进行重新测量后，超滤样本和未超滤样本的 14C 年龄基本相同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.