霍金晶,韩延兵.利用MC-ICP-MS测定铁同位素方法综述[J].西北地质,2021,54(4):280-289 HUO Jinjing,HAN Yanbing.A Review of MC-ICP-MS Fe Isotope Analytical Methods[J].Northwestern Geology,2021,54(4):280-289
利用MC-ICP-MS测定铁同位素方法综述
A Review of MC-ICP-MS Fe Isotope Analytical Methods
投稿时间:2021-01-15  修订日期:2021-03-30
DOI:10.19751/j.cnki.61-1149/p.2021.04.024
中文关键词:  铁同位素;多接收电感耦合等离子体质谱;质量歧视校正;同位素分馏;基质效应
英文关键词:Fe isotope;MC-ICP-MS;mass bias calibration;isotope fractionation;matrix effects
基金项目:国家自然科学基金项目“大别苏鲁造山带超高压变质大理岩及其包裹榴辉岩的Mg同位素地球化学”(41703006),中央高校基本科研业务费专项项目“大陆风化过程中的K同位素地球化学行为研究”(JZ2019HGTB0071)。
作者单位E-mail
霍金晶 合肥工业大学资源与环境工程学院, 安徽 合肥 230009  
韩延兵 中国地质调查局西安地质调查中心, 西北地质科技创新中心, 陕西 西安 710054 1434136886@qq.com 
摘要点击次数: 136
全文下载次数: 124
中文摘要:
      多接收电感耦合等离子体质谱(MC-ICP-MS)的应用已在金属稳定同位素分析方法上取得重大突破,促进了金属稳定同位素地球化学的快速发展。铁同位素作为一种新的同位素示踪体系,已广泛应用于主要的地球科学及其分支学科的研究中。目前,MC-ICP-MS对铁同位素的日常测定精度可以达到±0.03‰,但化学纯化和仪器分馏引起的质量偏差很容易引起较大的分析误差。因此,准确获取天然样品的铁同位素组成数据仍然是一个挑战。笔者系统回顾了铁同位素分析技术的发展,详细描述了铁同位素分析过程,包括化学纯化过程、仪器质量歧视校正和基质效应的规避等。
英文摘要:
      The use of multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) paved the way in the stable isotope analysis of metals, promoting the rapid development of non-traditional stable isotope geochemistry, among which, Fe isotope has received the greatest attention. This surge of study has been fueled largely by the redox-sensitive nature of iron as well as its availability in life. The research on the distribution and isotopic compositions of iron has covered almost all sub-branches of earth science, ranging from biochemistry to geochemistry. The MC-ICP-MS instrument has been demonstrated to be very efficient in determining trace element compositions in a wide variety of applications. However, many questions, such as chemical purification, mass bias correction and efficiently avoid of matrix effects, remain challenging.
查看全文    下载PDF阅读器
关闭