Accurate and precise determination of lead isotope composition in selected geochemical reference materials

作     者：Guangliang Wu Jian-Ming Zhu Decan Tan Guilin Han Lixing Zhang Kun Ren 

作者机构：State Key Laboratory of Geological Processes and Mineral Resources Institute of Earth Sciences China University of Geosciences Beijing 100083 China State Key Laboratory of Environmental GeochemistryInstitute of Geochemistry CAS Guiyang 550081 China University of Chinese Academy of Sciences Beijing 100049China 

出 版 物：《Acta Geochimica》 (地球化学学报（英文）)

年 卷 期：2017年第36卷第3期

页      面：421-425页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 070902[理学-地球化学] 0709[理学-地质学] 07[理学] 08[工学] 

基　　金：supported by National Key Basic Research Program of China(2014CB238903) the National Natural Science Foundation of China(Nos.41473028,41673017,U1612441) the Opening Fund of State Key Laboratory of Environmental Geochemistry(SKLEG2015201) 

主　　题：Lead isotopes Geochemical reference materials MC-ICP-MS 

摘      要：Lead(Pb)isotopes have been extensively employed in tracing sources of Pb and its transport pathways through the ***,Pb isotopic ratios in related geochemical reference materials are ***,we report high-precision Pb isotopic ratios measured by Nu Plasma II MC-ICP-MS using calibrated ^(205)Tl/^(203)Tl=2.38865(NIST SRM 997)for mass discrimination *** long-term external precision(2SD)for NISTSRM 981 of Pb,BCR-2,and BHVO-2 are 0.31‰(n=105),0.42‰(n=11),and 0.25‰(n=5)for ^(208)Pb/ ^(206)Pb and 0.16‰,0.53‰,and 0.07‰for ^(206)Pb/ ^(207)Pb,both respectively,and their Pb isotopic ratios are in excellent agreement with the recommended *** this method,we report for the first time Pb isotopic compositions in shale SGR-1b(USGS);coal CLB-1(USGS);stream sediments GSD-17,-21,and-23(IGGE);soils GSS-12,-13,-14,-15,and-16(IGGE);plants GSV-1,-2,and-3(IGGE);and human hair GSH-1(IGGE).