首页 | 本学科首页   官方微博 | 高级检索  
     检索      

玄武岩标准样品铁铜锌同位素组成
引用本文:唐索寒,闫斌,朱祥坤,李津,李世珍.玄武岩标准样品铁铜锌同位素组成[J].岩矿测试,2012,31(2):218-224.
作者姓名:唐索寒  闫斌  朱祥坤  李津  李世珍
作者单位:中国地质科学院地质研究所,国土资源部同位素地质重点实验室,大陆构造与动力学国家重点实验室,北京 100037
基金项目:国土资源公益性行业科研专项经费项目(200911043-17); 中国地质大调查项目(1212011120295)
摘    要:报道了三种玄武岩标准样品(BCR-2、BIR-1a和GBW 07105)的铁铜锌同位素数据。实验使用HNO3-HF混合酸消解玄武岩标准样品;AGMP-1阴离子交换树脂分离提纯样品中的铜铁锌,利用多接收等离子体质谱仪(MC-ICPMS)测定铁铜锌同位素比值,分析过程中使用样品-标准-样品交叉法校正仪器的质量分馏。实验得到BCR-2、BIR-1a和GBW 07105标准样品的高精度铁铜锌同位素组成(95%置信水平的不确定度)分别为:δ56FeBCR-2-IRMM014=0.070‰±0.018‰(2SD),δ65 CuBCR-2-SRM976=0.16‰±0.04‰(2SD),δ66 ZnBCR-2-IRMM3702=-0.072‰±0.020‰(2SD);δ56 FeBIR-1a-IRMM014=0.044‰±0.026‰(2SD),δ65CuBIR-1a-SRM976=0.027‰±0.019‰(2SD),δ66 ZnBIR-1a-IRMM3702=0.085‰±0.032‰(2SD);δ56FeGBW 07105-IRMM014=0.126‰±0.039‰(2SD),δ65 CuGBW 07105-SRM976=0.12‰±0.01‰(2SD),δ66ZnGBW 07105-IRMM3702=0.22‰±0.03‰(2SD)。这些数据在误差(不确定度)范围内与国际上已发表的数据是一致的。三个玄武岩标准样品的铁铜锌同位素组成数据的发表为铁铜锌同位素研究提供了统一的标准,使地质样品的铁铜锌同位素数据的质量监控成为可能。

关 键 词:玄武岩标准样品  铁铜锌同位素  多接收等离子体质谱法
收稿时间:2011/12/9 0:00:00

Iron, Copper and Zinc Isotopic Compositions of Basaltic Standard Reference Materials
TANG Suo-han,YAN Bin,ZHU Xiang-Kun,LI Jin and LI Shi-zhen.Iron, Copper and Zinc Isotopic Compositions of Basaltic Standard Reference Materials[J].Rock and Mineral Analysis,2012,31(2):218-224.
Authors:TANG Suo-han  YAN Bin  ZHU Xiang-Kun  LI Jin and LI Shi-zhen
Institution:State Key Laboratory for Continental Tectonics and Dynamics, Key Laboratory of Isotopic Geology, The Ministry of Land and Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;State Key Laboratory for Continental Tectonics and Dynamics, Key Laboratory of Isotopic Geology, The Ministry of Land and Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;State Key Laboratory for Continental Tectonics and Dynamics, Key Laboratory of Isotopic Geology, The Ministry of Land and Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;State Key Laboratory for Continental Tectonics and Dynamics, Key Laboratory of Isotopic Geology, The Ministry of Land and Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;State Key Laboratory for Continental Tectonics and Dynamics, Key Laboratory of Isotopic Geology, The Ministry of Land and Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
Abstract:Fe,Cu and Zn isotopic compositions of 3 basaltic standard reference materials of BCR-2,BIR-1a and GBW 07105 were reported in this paper.The basaltic samples were digested with HNO3-HF mixed acids.Anion exchange resin AGMP-1 was used in the separation of Fe,Cu and Zn from other elements.Fe,Cu and Zn isotopic ratios were determined by Multiple Collector-Inductively Coupled Plasma-Mass Spectrometry(MC-ICPMS),and isotopic mass fractionation was calibrated by Standard-Sample bracketing.The Fe,Cu and Zn isotopic composition of 3 basaltic standard reference materials(at 95% confidence level) were as follows: δ56FeBCR-2-IRMM014=0.070‰±0.018‰(2SD),δ65Cu BCR-2-SRM976=0.16‰±0.04‰(2SD),δ66ZnBCR-2-IRMM3702=-0.072‰±0.020‰(2SD);δ56FeBIR-1a-IRMM014 =0.044‰±0.026‰(2SD),δ65Cu BIR-1a-SRM976=0.027‰±0.019‰(2SD),δ66ZnBIR-1a-IRMM3702=0.085‰±0.032‰(2SD);δ56FeGBW 07105-IRMM014=0.126‰±0.039‰(2SD),δ65CuGBW 07105-SRM976=0.12‰±0.01‰(2SD),δ66ZnGBW 07105-IRMM3702=0.22‰±0.03‰(2SD).These data were in good agreement with published data within uncertainties.The Fe,Cu and Zn isotopic data of basaltic reference materials provide a new standard for relevant research,and a method for evaluation of the quality of the whole process of sample preparation and isotope measurement.
Keywords:basaltic standard reference materials  iron  copper and zinc isotopic compositions  multi-collector inductively coupled plasma-mass spectrometry
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《岩矿测试》浏览原始摘要信息
点击此处可从《岩矿测试》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号