地学前缘 ›› 2020, Vol. 27 ›› Issue (3): 1-13.DOI: 10.13745/j.esf.sf.2020.4.7
• “非传统稳定同位素:分析方法、示踪机理和主要应用”主题专辑 • 上一篇 下一篇
白江昊1,2(), 刘芳1,*(), 张兆峰1, 安亚军1, 李欣1, 薛永丽1,2, 徐玉明1,2
收稿日期:
2019-12-04
修回日期:
2020-04-14
出版日期:
2020-05-20
发布日期:
2020-05-20
通讯作者:
刘芳
作者简介:
白江昊(1993—),男,硕士研究生,地质工程专业,主要从事Ca同位素研究。E-mail: baijianghao@gig.ac.cn
基金资助:
BAI Jianghao1,2(), LIU Fang1,*(), ZHANG Zhaofeng1, AN Yajun1, LI Xin1, XUE Yongli1,2, XU Yuming1,2
Received:
2019-12-04
Revised:
2020-04-14
Online:
2020-05-20
Published:
2020-05-20
Contact:
LIU Fang
摘要:
高精度高质量的同位素分析技术是开展非传统稳定同位素地球化学工作的前提。同位素分析是不断提取样品真实信息的过程,包括样品制备、化学分离、质谱测定和数据处理4个基本步骤。在同位素分析过程中,每一环节都有可能引入空白或者污染,或造成同位素分馏,引发信息“失真”。为了准确获得样品的真实同位素组成,必须有效避免污染并精准校正在分析过程中可能的干扰。以Ca同位素为例,在总结前人工作的基础上,探讨了各个步骤所涉及的分析要点,为建立其他同位素体系的分析方法提供参考,为后续储库探讨、机理解析及应用研究提供技术支撑。
中图分类号:
白江昊, 刘芳, 张兆峰, 安亚军, 李欣, 薛永丽, 徐玉明. 非传统稳定同位素分析技术要点[J]. 地学前缘, 2020, 27(3): 1-13.
BAI Jianghao, LIU Fang, ZHANG Zhaofeng, AN Yajun, LI Xin, XUE Yongli, XU Yuming. Key aspects of non-traditional isotope analysis[J]. Earth Science Frontiers, 2020, 27(3): 1-13.
图2 化学分离前加入双稀释剂和化学分离后加入稀释剂结果对比(原始数据来源于[65])
Fig.2 Comparison of δ44/40Ca values as result of double-spike addition before and after chemical separation. Original data adapted from [65].
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