ICP-AES法测定古代车师人肋骨中的痕量元素

近几十年来 ,古代人群的食谱研究已经成为现代科技考古学的一个重要组成部分 ,也是当前国际科技考古学研究领域的一项前沿性课题。人类骨骼的微量元素分析为重建古代居民的食谱提供了大量信息。本文用硝酸 盐酸消解样品 ,采用电感耦合等离子发射光谱仪 (ICP AES) ,在选定的最佳条件下 ,对新疆地区古代车师人肋骨中的Sr,Zn ,Ca ,Cu ,Mg,Fe ,Ba ,Mn等 8种痕量元素进行了测定 ,该方法采用一次溶样 ,多元素同时测定 ,回收率为 87 4 %～ 1 0 6 6 %之间。相对标准偏差为 0 5 %～ 3 3%。该方法简单 ,快捷可靠 ,适用于古代骨样品的测定 ,结果令人满意。其结果为考古学和人类学的研究提供了科学的依据。同时考察了不同酸度对分析结果的影响和共存元素间的相互干扰 ,此外还进行了精密度实验。

Determination of Trace Elements in Ancient Cheshi Human Costa by ICP-AES

In recent years, the study on palaeodiet is an important research in the international archaeological field. Trace elements in human bones can supply a lot of valuable information to reconstruct ancient diet. In this study, The trace elements in Bronze age Cheshi human costa from Chubeixi cemetery in shanshan, Xinjiang were determined by ICP AES. The sample was dissolved by HNO 3 and HCl. Under the optimum conditions, eight elements can be determined simultaneously. The recoveries of the method are in the rang of 87 4% 106 6%, and RSDs are in the range of 0 5% 3 3%. The method is simple, rapid, precise and convenient to operate. The results would be helpful for research in archaeology. This analysis established Xinjiang's consult system of trace elements analysis for ancient human bones. The effects of various concentrations of acid solution on analysis results, the interference of coexistent elements, standard addition recovery, and precision of the method were investigated.