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铅同位素研究已经广泛应用于地质年代学以及同位素地球化学示踪,然而在同位素质谱(TIMS或者MC-ICPMS)测试分析中不可避免地会产生同位素分馏效应,如果不加以校正,会严重影响分析结果的精确度和准确度(Thirlwall,2000;刘希军等,2013)。铅同位素“双稀释剂法”则是校正质谱分馏的方法之一。作者在美国加州大学圣地亚哥分校Scripps海洋研究所(SIO)和中国科学院广州地球化
Lead isotope studies have been widely used in geochronology and isotope geochemical tracing, however, isotope fractionation effects inevitably result from the analysis of isotope mass spectrometry (TIMS or MC-ICPMS), which, if not corrected, can seriously affect the analytical results Accuracy and accuracy (Thirlwall, 2000; Liu Xijun et al., 2013). Lead isotope “double-thinner method ” is one of the methods to correct mass spectrometry fractionation. The author at the University of California, San Diego Scripps Institute of Oceanography (SIO) and the Chinese Academy of Sciences Guangzhou geochemistry