Accurate and precise determination of lead isotopic composition in selected Geochemical Reference Materials
Lead(Pb)isotopes have been extensively employed in tracing the Pb sources and its transport pathways in the environment.However,Pb isotopic ratios in related geochemical reference materials are scarce.Here,we report high precision Pb isotopic ratios measured by Nu Plasma II MC-ICP-MS using the calibrated 205Tl/203Tl=2.38865(NIST SRM 997)for mass discrimination correction.The long-term external precision(2SD)for 208Pb/206Pb and 206Pb/207Pb of NIST SRM 981 Pb,BCR-2 and BHVO-2 are 0.31‰(n=105),0.42‰(n=11),0.25‰(n=5)and 0.16‰,0.53‰,0.07‰,respectively,and their Pb isotopic ratios are in excellent agreement with the recommended values.Using this method we,for the first time,report Pb isotopic compositions in shale SGR-1b(USGS),coal CLB-1(USGS),stream sediments GSD17,21 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).
Lead isotopes Geochemical reference materials MC-ICP-MS
Guangliang Wu Jianming Zhu Decan Tan Guilin Han Lixing Zhang Kun Ren
State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,B State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,B State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,CAS,Guiyang,550081,Chin
国际会议
The 11th International Symposium on Geochemistry of the Earths Surface(GES-11)(第十一届地球表层地球化学国际研讨会)
贵阳
英文
1-4
2017-06-11（万方平台首次上网日期，不代表论文的发表时间）