摘要
本文综述了铜(Cu)同位素分析测试方法的研究进展,提出了一套简单高效的纯化Cu的方法。鉴于原有Cu同位素的标准物质NIST SRM 976已经停产,本文归纳了一些已经报道的Cu同位素的替代标样,认为NIST SRM 3114具有更大的优越性。此外,在质谱测试过程中,利用Ga作为一个新的内标,采用内标法与SSB法结合的方法(C-SSBIN)校正仪器的质量歧视,可以使分析精度提高5倍左右。
This paper has summarized the progresses of copper isotope analysis method. A simple and efficient Cu purification method has been presented to make copper be separated from the matrix elements effectively. Due to the fact that the previous certified reference material NIST SRM 976 is no longer available,this paper assessed some alternative reference materials and concluded that the NIST SRM 3114 is more competitive than others. In addition,during the analysis of Cu isotope,the application of new internal standard Ga and a combined standard sample bracketing and internal normalization method（ C-SSBIN） for correcting mass bias of instrument could result in the improvement of the analytical precision about five times.
出处
《矿物岩石地球化学通报》
CAS
CSCD
北大核心
2016年第3期497-506,401,共10页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
国家自然科学基金项目(41273005,41073007)
作者简介
王倩（1992-），女，硕士研究生，专业方向：地球化学．E-mail：cugwangqian@163．com．
通讯周炼（1964-），男，教授，专业方向：地球化学．E-mail：lianzhou@cug．edu．cn．
