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Elimination of oxide interferences and determination of ultra-trace silver in soils by ICP-MS with ion-molecule reactions

文献类型：期刊论文

作者Guo, Wei1,2; Hu, Shenghong1; Zhang, Jiangyi3; Zhang, Hongfei1
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2011-07-01
卷号409期号:15页码:2981-2986
关键词Silver Icp-ms Ion-molecule Reactions Soil
ISSN号0048-9697
DOI10.1016/j.scitotenv.2011.04.011
文献子类Article
英文摘要Silver is subject to significant spectral interferences caused by high concentrations of Zr, Nb, Mo and V in inductively coupled plasma mass spectrometry (ICP-MS) analysis for soil or sediment samples. In this study, the Zr, Nb, and Mo based oxide and/or hydroxide polyatomic interferences were successfully eliminated by ion molecule reactions in a dynamic reaction cell (DRC). These potentially interfering ions (93)Nb(16)O(+), (92)Zr(16)OH(+) and (92)Mo(16)OH(+) on (109)Ag(+) were rapidly oxidized to higheroxides (93)NbO(2)(+), (92)ZrO(2)H(+)/(92)ZrO(2)H(+) and (92)MoO(2)H(+) by O(2) as the reaction gas in DRC. However, interfering ions (89)Y(18)O(+) and (91)Zr(16)O(+) on (107)Ag cannot be removed by this method, because the reaction rates of ZrO(+) and YO(+) to ZrO(2)(+)/ZrO(3)(+) and YO(2)(+)/YO(3)(+) were too low. Under the optimized 02 flow rate (2.4 mL min(-1)) and DRC rejection parameter q (Rpq, 0.75), the background signal was reduced by up to 100-fold at m/z 109 and the limit of quantitation (LOQ 10 sigma) for (109)Ag was 0.5 ng g(-1). The proposed method was used to determine the concentration of Ag in twenty-eight soil standard reference materials (SRMs). The accuracy of the results suggests that the method has great potential for the direct determination of trace or ultra-trace levels of Ag in various environmental samples. (C) 2011 Elsevier B.V. All rights reserved.
WOS关键词PLASMA-MASS SPECTROMETRY ; REACTION CELL ; ENVIRONMENTAL-SAMPLES ; ONLINE DETERMINATION ; ELEMENT CONTENTS ; CADMIUM ; METALS ; WATERS ; AG ; CONTAMINATION
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000292722600015
出版者ELSEVIER SCIENCE BV
资助机构National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; 40821061) ; 40821061) ; National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; 40821061) ; 40821061) ; National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; 40821061) ; 40821061) ; National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; 40821061) ; 40821061)
源URL[http://ir.iggcas.ac.cn/handle/132A11/73510]  
专题中国科学院地质与地球物理研究所
通讯作者Guo, Wei
作者单位1.China Univ Geosci, Fac Earth Sci, Minist Educ, Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
2.Minist Commerce, Circulat Ind Promot Ctr, Beijing 100747, Peoples R China
3.Chinese Acad Sci, Engn Geol & Water Resources Dept, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Wei,Hu, Shenghong,Zhang, Jiangyi,et al. Elimination of oxide interferences and determination of ultra-trace silver in soils by ICP-MS with ion-molecule reactions[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2011,409(15):2981-2986.
APA Guo, Wei,Hu, Shenghong,Zhang, Jiangyi,&Zhang, Hongfei.(2011).Elimination of oxide interferences and determination of ultra-trace silver in soils by ICP-MS with ion-molecule reactions.SCIENCE OF THE TOTAL ENVIRONMENT,409(15),2981-2986.
MLA Guo, Wei,et al."Elimination of oxide interferences and determination of ultra-trace silver in soils by ICP-MS with ion-molecule reactions".SCIENCE OF THE TOTAL ENVIRONMENT 409.15(2011):2981-2986.

入库方式： OAI收割

来源：地质与地球物理研究所

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