【摘要】 概述了Pb同位素的示踪原理、测定方法及在环境地球化学研究中的应用。Pb同位素由于其质量重,同位素间的相对质量差较小,外界条件的变化对其组成的影响很小。电感耦合等离子体质谱法(ICP—MS)具有极高的灵敏度和较高的精密度,已经广泛地应用于Pb同位素的测定。近年来,Pb同位素已经在土壤、水与大气环境污染示踪中得到了广泛的应用。更多还原

【Abstract】 Tracing theory,analytical method and its applications in environmental geochemistry of lead isotopes are summarized in this paper.Because of the weight of lead isotopes is high,the relative quality difference of isotopes is less,so the change of outside conditions has little impact on their compositions. The method of ICP-MS has extremely high sensitivity and higher precision,and it has been widely used in measuring lead isotopes.In recent years,lead isotopes method has been widely used in tracing pollution of soil,water and soil environment.更多还原