Refining Chronologies by new Radiocarbon Dating Methods: Towards Molecular Isotope Archaeology (F05)

研究古代骨骼的同位素组成可以大大提高对人类进化的理解，为所有CRC项目提供有价值的年龄和饮食信息。然而，用于年龄和饮食研究的骨胶原蛋白经常由于各种地球化学过程而受到污染。虽然胶原蛋白提取的标准方案不能充分解决这个问题，但新开发的胶原蛋白纯化方法（分离单个氨基酸）的应用能够避免这种污染，最终提供比以前的方法更可靠的结果。此外，F5项目将继续对所有CRC项目进行AMS 14C分析。

Understanding human evolution can be considerably improved when studying the isotopic composition of ancient bones providing valuable age and dietary information relevant to all CRC projects. However, bone collagen employed in age and dietary studies is often contaminated due to various geo-chemical processes. While standard protocols in collagen extraction do not sufficiently solve this problem, the application of a newly developed collagen purification method (isolation of individual amino acids) is able to circumvent such contaminations, ultimately providing more reliable results than previous methods. Additionally, the F5 project will continue performing AMS 14C analysis for all CRC projects.