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密闭高温高压溶样ICP-MS测定56种国家地质标准物质中的36种痕量元素——对部分元素参考值修正和定值的探讨
引用本文:刘晔,第五春荣,柳小明,袁洪林.密闭高温高压溶样ICP-MS测定56种国家地质标准物质中的36种痕量元素——对部分元素参考值修正和定值的探讨[J].岩矿测试,2013,32(2):221-228.
作者姓名:刘晔  第五春荣  柳小明  袁洪林
作者单位:大陆动力学国家重点实验室,西北大学地质学系,陕西西安710069
基金项目:国家自然科学基金项目(40902056); 科技部国家重点实验室自主研究重点课题(BJ11070)
摘    要:标准物质参考值的准确性在测试仪器校准、分析数据质量监控以及方法评价等方面具有非常重要的作用.为了检验国家地质标准物质参考值的准确性,本文应用高温高压密闭溶样-电感耦合等离子体质谱法分析了国家地质标准物质的18种岩石(GBW 07103 ~ GBW 07125)、19种沉积物(GBW 07301 ~ GBW 07318)和19种土壤(GBW 07401 ~ GBW 07430)中36种痕量与稀土元素.结果表明,除个别标准样品中的几个元素(Ni、Cr、Pb、Co、Cu、Sc、Yb、Lu)外,其余国家标准物质中36种元素测定结果的相对标准偏差均小于10%;绝大部分元素测定值的相对误差小于10%,测定值与参考值能较好地吻合.将误差较大元素的测定值与其他实验室的测定值以及文献报道值进行了比较,指出已有的参考值需要修正;针对部分沉积物和土壤中的元素未提供参考值,如GBW 07306的Ni、GBW 07313的Be、Hf、Ta,GBW 07314的Li、Be,GBW 07409、GBW 07410和GBW0741 1的Hf、Ta,GBW 07426的Gd、Ta,本文给出了相应的参考值.

关 键 词:密闭溶样  电感耦合等离子体质谱法  国家地质标准物质  岩石  沉积物  土壤  参考值
收稿时间:2012/7/18 0:00:00
修稿时间:2012/11/16 0:00:00

Determination of 36 Trace Elements in 56 Chinese National Standard Reference Materials by ICP-MS with Pressurized Acid-Digestion
LIU Ye,DIWU Chun-rong,LIU Xiao-ming and YUAN Hong-lin.Determination of 36 Trace Elements in 56 Chinese National Standard Reference Materials by ICP-MS with Pressurized Acid-Digestion[J].Rock and Mineral Analysis,2013,32(2):221-228.
Authors:LIU Ye  DIWU Chun-rong  LIU Xiao-ming and YUAN Hong-lin
Institution:State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China;State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China;State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China;State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China
Abstract:The accuracy of the certified values of the national reference materials plays an important role in instrument calibration, and therefore quality control for analysis data. In order to test the accuracy of the certified values of the Chinese National Standard Reference Materials, 36 trace elements were determined for 18 National Standard Reference Materials of rock (from GBW 07103 to GBW 07125), 19 National Standard Reference Materials of sediment (from GBW 07301 to GBW 07318) and 19 National Standard Reference Materials of soil (from GBW 07401 to GBW 07430) by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). These National Standard Reference Materials were digested by using the pressurized acid digestion technique. The relative standard deviation (RSD) of most trace elements in these materials were typically better than 10%, except for Ni, Cr, Pb, Co, Cu, Sc, Yb and Lu in several reference materials. Most of the results were consistent with the certified values in the literature, and with a relative error of less than 10%. Results given here indicate that a few certified values of some reference materials should be revised. In addition, content values of some trace elements in the National Standard Reference Materials of sediment or National Standard Reference Materials of soil, such as Ni for GBW 07306, Be, Hf and Ta for GBW 07313, Li and Be for GBW 07314, Hf and Ta for GBW 07409, GBW 07410 and GBW 07411, Gd and Ta for GBW 07426 are provided here.
Keywords:pressurized acid digestion  Inductively Coupled Plasma-Mass Spectrometry  National Geological Reference Materials  rock  sediment  soil  proposed values
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