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Soil monitoring of arsenic by methanol addition DRC ICP-MS after boiling aqua regia extraction

文献类型：期刊论文

作者Guo, Wei1; Hu, Shenghong1; Zhang, Jiangyi2; Jin, Lanlan1; Wang, Xiuji1; Zhu, Zhenli1; Zhang, Hongfei1
刊名JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
出版日期2011
卷号26期号:10页码:2076-2080
ISSN号0267-9477
DOI10.1039/c1ja10126a
文献子类Article
英文摘要Trace levels of arsenic (As) in soil samples can be determined by conventional ICP-QMS with closed vessel digestion, but always suffer from interference of ions originating from the complicated matrix, mainly including (CaCl+)-Ca-40-Cl-35, (ArCl+)-Ar-40-Cl-35, (KAr+)-K-39-Ar-36, Nd-150(2+), Eu-150(2+) and Sm-150(2+) etc. In this study, As-75(+), the mass for general detection, was effectively changed to (AsO+)-As-75-O-16 which could be detected at m/z 91 by reaction with oxygen in a Dynamic Reaction Cell (DRC). For the new interference of Zr-91(+) on (AsO+)-As-75-O-16, boiling aqua regia extraction was used to remove most of the zirconium in the sample preparation procedure, and the residual Zr-91(+) was oxidized to (ZrO+)-Zr-91-O-16 by oxygen in the DRC. In addition, the signal intensity of (AsO)-As-75-O-16 was improved 4-fold by addition of 4% methanol into the sample solution. The signal to background ratio (SBR) of As was obviously improved from 0.18 to 205 (the certified arsenic concentration is 1 mu g L-1), and a limit of quantification (LOQ, 10 sigma) of 0.1 ng g(-1) was obtained. The proposed method was successfully applied to analyze 20 soil samples collected from pig farms in livestock farming processes, and shows its great potential for trace As determination in environmental and geological samples.
WOS关键词PLASMA-MASS-SPECTROMETRY ; DYNAMIC REACTION CELL ; ION-MOLECULE REACTIONS ; COLLISION CELL ; TRACE-ELEMENTS ; SPECIATION ANALYSIS ; SELENIUM-COMPOUNDS ; POULTRY LITTER ; WATER SAMPLES ; INTERFERENCES
WOS研究方向Chemistry ; Spectroscopy
语种英语
WOS记录号WOS:000295080100018
出版者ROYAL SOC CHEMISTRY
资助机构National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; Ministry of Commerce of the People's Republic of China ; Ministry of Commerce of the People's Republic of China ; 40821061) ; 40821061) ; National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; Ministry of Commerce of the People's Republic of China ; Ministry of Commerce of the People's Republic of China ; 40821061) ; 40821061) ; National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; Ministry of Commerce of the People's Republic of China ; Ministry of Commerce of the People's Republic of China ; 40821061) ; 40821061) ; National Nature Science Foundation of China(40973021 ; National Nature Science Foundation of China(40973021 ; Ministry of Commerce of the People's Republic of China ; Ministry of Commerce of the People's Republic of China ; 40821061) ; 40821061)
源URL[http://ir.iggcas.ac.cn/handle/132A11/73550]  
专题中国科学院地质与地球物理研究所
通讯作者Hu, Shenghong
作者单位1.China Univ Geosci, Fac Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Engn Geol & Water Resources Dept, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Wei,Hu, Shenghong,Zhang, Jiangyi,et al. Soil monitoring of arsenic by methanol addition DRC ICP-MS after boiling aqua regia extraction[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2011,26(10):2076-2080.
APA Guo, Wei.,Hu, Shenghong.,Zhang, Jiangyi.,Jin, Lanlan.,Wang, Xiuji.,...&Zhang, Hongfei.(2011).Soil monitoring of arsenic by methanol addition DRC ICP-MS after boiling aqua regia extraction.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,26(10),2076-2080.
MLA Guo, Wei,et al."Soil monitoring of arsenic by methanol addition DRC ICP-MS after boiling aqua regia extraction".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 26.10(2011):2076-2080.

入库方式： OAI收割

来源：地质与地球物理研究所

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