岩矿测试2016，Vol.35Issue(6)：612-620,9.DOI:10.15898/j.cnki.11-2131/td.2016.06.007
CGSG 系列标准物质元素分馏效应及主量微量元素单元内均匀性探究
Study on the Elemental Fractionation Effect of CGSG Reference Materials and the Related Within-Unit Homogeneity of Major and Trace Elements
摘要
Abstract
Studies on elemental fractionation and homogeneity of CGSG reference materials (CGSG-1 ,CGSG-2, CGSG-4 and CGSG-5 )promote quality assessment and application.The elemental fractionation and within-unit homogeneity of CGSG reference materials were evaluated using Electron Microprobe and Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS ).Meanwhile,the major and trace element contents were also reported.The results showed that the elemental fractionation of CGSG reference materials was negligible for 50 μm spot size.Electron Microprobe homogeneity index illustrated that the homogeneity of major elements in CGSG reference materials is approvingly acceptable,and most trace elements possess same homogeneity grade with MPI-DING reference materials.Analytical results of major elements by Electron Microprobe and LA-ICP-MS are consistent with published data within 2% and 5% errors,respectively.Analytical results of trace elements by LA-ICP-MS are generally in agreement with the published data.Some elements such as Cr,Ge,Cd,As and Tl show a larger deviation due to the large uncertainties of the analytical technique.In general,the analysis data reported here could supplement the CGSG value database.关键词
C GS G标准物质/元素分馏/均匀性检验/电子探针/激光剥蚀电感耦合等离子体质谱Key words
CGSG reference materials/elemental fractionation/homogeneity test/EMPA/LA-ICP-MS分类
化学化工引用本文复制引用
吴石头,王亚平,詹秀春,Andreas Kronz,Klaus Simon,许春雪,田欢..CGSG 系列标准物质元素分馏效应及主量微量元素单元内均匀性探究[J].岩矿测试,2016,35(6):612-620,9.基金项目
中国地质调查局地质调查项目（12120115054901）；国家留学基金资助项目 （）
