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Direct Determination of Dissolved Silicon in Atmospheric Precipitation by CH4-Ar Mixed Plasma DRC-ICP-MS

文献类型：期刊论文

作者Zhang, Jiangyi1,2; Xu, Zhifang1,2
刊名JOURNAL OF ANALYTICAL CHEMISTRY
出版日期2022-11-01
卷号77期号:11页码:1458-1462
关键词dissolved silicon atmospheric precipitation CH4-Ar mixed plasma DRC-ICP-MS
ISSN号1061-9348
DOI10.1134/S1061934822110168
英文摘要Direct determination of dissolved silicon (DSi) in atmospheric precipitation by ICP-MS is still a challenge because of the presence of serious mass interferences. In this work, a reliable method based on CH4-Ar mixed gas plasma DRC-ICP-MS was successfully used for the direct determination of DSi in atmospheric precipitation samples. The interfering ions ((NN+)-N-14-N-14, (CO+)-C-12-O-16) were directly removed by the reaction with carbon dioxide gas and could be reduced by up to 99% at m/z 28. In addition, the sensitivity of Si-28(+) was 2-fold improved by CH4 modifier that was introduced to the ICP plasma at 2 mL/min, and the background signal was decreased to 60%. Under the optimized conditions, the limit of quantification was 5 mu g/L, and the reproducibility (RSD) was generally less than 3%. The proposed method was assessed using surface water standard reference materials, and the measured values agreed well with the certified values.
WOS关键词MASS-SPECTROMETRY ; PHOSPHORUS ; PHOSPHATE ; SEAWATER ; SAMPLES ; SPECIATION ; SELENIUM ; OIL ; SI
资助项目National Natural Science Foundation of China[91747202] ; National Natural Science Foundation of China[41730857] ; National Key Research and Development Program of China[2020YFA0607700]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000882003300010
出版者PLEIADES PUBLISHING INC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/107643]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Zhang, Jiangyi
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Jiangyi,Xu, Zhifang. Direct Determination of Dissolved Silicon in Atmospheric Precipitation by CH4-Ar Mixed Plasma DRC-ICP-MS[J]. JOURNAL OF ANALYTICAL CHEMISTRY,2022,77(11):1458-1462.
APA Zhang, Jiangyi,&Xu, Zhifang.(2022).Direct Determination of Dissolved Silicon in Atmospheric Precipitation by CH4-Ar Mixed Plasma DRC-ICP-MS.JOURNAL OF ANALYTICAL CHEMISTRY,77(11),1458-1462.
MLA Zhang, Jiangyi,et al."Direct Determination of Dissolved Silicon in Atmospheric Precipitation by CH4-Ar Mixed Plasma DRC-ICP-MS".JOURNAL OF ANALYTICAL CHEMISTRY 77.11(2022):1458-1462.

入库方式： OAI收割

来源：地质与地球物理研究所

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