最少破坏性的放射性碳测年法对骨进行测年
Tom Higham1,2, Katharina Luftensteiner1, Laura van der Sluis1,2
1Department of Evolutionary Anthropology, Faculty of Life Sciences, University of Vienna, Vienna, Austria.
Rapid communications in mass spectrometry : RCM
|January 30, 2026
概括
一种新的以水为基础的方法允许放射性碳测定骨的年代,损伤最小. 这种最小破坏性的原蛋白提取提供了准确的日期,保存宝贵的考古文物.
科学领域:
- 考古学测量是指考古学测量的方法.
- 生物地质化学生物地质化学
- 古代蛋白质组学 (Paleoproteomics) 是一种古蛋白质组学.
背景情况:
- 骨头对于放射性碳测年至关重要,但目前的方法具有破坏性.
- 现有的非破坏性技术尚未为骨放射性碳测年确定.
- 这项研究研究了一种用于非破坏性骨测年法的新方法.
研究的目的:
- 开发和验证一种最小破坏性的方法,用于骨的放射性碳测年.
- 评估使用热水提取用于原体隔离的可行性.
- 用新方法获得的放射性碳日期与传统的破坏性技术进行比较.
主要方法:
- 使用热水 (75°C和90°C) 提取技术,从整个骨和牙中分离可溶性原.
- 净化了提取的原蛋白,并进行了加速器质谱 (AMS) 放射性碳测年法.
- 将该方法应用于来自各种考古时期 (青铜时代,中古石器和上古石器) 的骨和牙样本.
主要成果:
- 热水提取的原蛋白与传统提取的原蛋白具有可比的氨基酸组成和同位素值 (C/N, δ13C, δ15N).
- 从最小破坏性方法获得的放射性碳日期与以前使用破坏性方法获得的日期保持一致.
- 该技术已成功应用于古老的骨和牙样本,产生可靠的结果.
结论:
- 使用热水进行最小破坏性原蛋白提取,然后进行净化,可以获得与破坏性方法相比较准确的放射性碳年龄.
- 这种方法可以保护宝贵的骨和牙样本的完整性,避免可见的外部损伤.
- 该方法有可能在不经重大改变的情况下测定宝贵的文物,装饰品和博物馆物品的年代.
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