摘要
随着多接收电感耦合等离子体质谱(MC-ICP-MS)的应用,金属稳定同位素的分析方法不断得到改善和突破,这使得金属稳定同位素地球化学成为国际上新兴的地球科学方向。本文以V和Ba同位素为代表,详述了这两个体系近年来分析方法的进展。重点介绍了中国科学技术大学金属稳定同位素实验室建立的高精度的V同位素分析方法[δ^(51)VAA的长期外部测量精度好于±0.1‰(2SD)],以及将SRM3104a作为基准标样的Ba同位素分析方法[δ^(137/134)Ba_(SRM3104a)长期外部测量精度优于±0.05‰(2SD)]。
With the wide application of MC-ICP-MS,analytical methods for metal stable isotopes have been tremendously improved. Therefore,the metal stable isotope geochemistry has become a new field of earth sciences. Taking V and Ba isotopes as examples,this paper has reviewed recent progresses of analytical techniques of metal stable isotopes,especially introduced the high precision analytical methods,for analyzing V isotope [with a long term external precision of δ^（51） VAA better than ± 0.1‰（ 2SD） ]and Ba isotope with SRM3104 a as basic reference material（ with a long term external precision of [δ^（137/134）Ba_（SRM3104a） abetter than ± 0.05‰（ 2SD））,newly established by the Metal Stable Isotope Laboratory of the China University of Science and Technology.
出处
《矿物岩石地球化学通报》
CAS
CSCD
北大核心
2016年第3期413-421,400,共9页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
国家自然科学基金杰出青年基金项目(41325011)
