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In Situ Underwater Laser-Induced Breakdown Spectroscopy Analysis for Trace Cr(VI) in Aqueous Solution Supported by Electrosorption Enrichment and a Gas-Assisted Localized Liquid Discharge Apparatus

文献类型：期刊论文

作者Jiang, Tian-Jia1,2; Yang, Meng1,2; Li, Shan-Shan1,2; Ma, Ming-Jun3; Zhao, Nan-Jing3; Guo, Zheng1,2; Liu, Jin-Huai; Huang, Xing-Jiu1,2
刊名ANALYTICAL CHEMISTRY
出版日期2017-05-16
卷号89期号:10页码:5557-5564
DOI10.1021/acs.analchem.7b00629
文献子类Article
英文摘要Traditional laser-induced breakdown spectroscopy (LIES) always fails to directly detect target in aqueous solution due to rapid quenching of emitted light and adsorption of pulse energy by surrounding water. A method is proposed for the in situ underwater LIES analysis of Cr(VI) in aqueous solution freed from the common problems mentioned above by combining a gas-assisted localized liquid discharge apparatus with electrosorption for the first time. In this approach, the introduction of the gas assisted localized liquid discharge apparatus provides an instantaneous gaseous environment for underwater LIES measurement (that is, the transfer of sampling matrix is not needed from aqueous solution to dry state). The preconcentration of Cr(VI) is achieved by electrosorption with a positive potential applied around adsorbents, which can promote the adsorption of Cr(VI) and inhibit that of the coexisting cations leading to a good anti interference. Amino groups functionalized chitosan-modified graphene oxide (CS-GO) is utilized for Cr(VI) enrichment, which can be protonated to form NH3+ in acidic condition promoting the adsorption toward Cr(VI) by electrostatic attraction. The highest detection sensitivity of 5.15 counts mu g(-1) L toward Cr(VI) is found for the optimized electrosorption potential (E-Es = 1.5 V) and electrosorption time (t(Es) = 600 s) without interference from coexisting metal ions. A corresponding limit of detection (LOD) of 12.3 mu g L-1 (3 sigma method) is achieved, which is amazingly improved by 2 or even 3 orders of magnitude compared to the previous reports of LIES.
WOS关键词INDUCTIVELY-COUPLED PLASMA ; ATOMIC-ABSORPTION-SPECTROMETRY ; COMPOSITE FILM ELECTRODES ; RAY-FLUORESCENCE ANALYSIS ; HEXAVALENT CHROMIUM ; WASTE-WATER ; ELECTROCHEMICAL DETECTION ; MATRIX CONVERSION ; OXIDE COMPOSITES ; METAL DETECTION
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000401674800050
资助机构National Natural Science Foundation of China(61474122) ; National Natural Science Foundation of China(61474122) ; National Natural Science Foundation of China(61474122) ; National Natural Science Foundation of China(61474122) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; 2013AA065502) ; 2013AA065502) ; 2013AA065502) ; 2013AA065502) ; National Natural Science Foundation of China(61474122) ; National Natural Science Foundation of China(61474122) ; National Natural Science Foundation of China(61474122) ; National Natural Science Foundation of China(61474122) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; National High Technology Research and Development Program of China (863 Program)(2014AA06A513 ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China ; 2013AA065502) ; 2013AA065502) ; 2013AA065502) ; 2013AA065502)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31851]  
专题合肥物质科学研究院_中科院合肥智能机械研究所
作者单位1.Chinese Acad Sci, Inst Intelligent Machines, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Key Lab Environm Opt & Technol, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Tian-Jia,Yang, Meng,Li, Shan-Shan,et al. In Situ Underwater Laser-Induced Breakdown Spectroscopy Analysis for Trace Cr(VI) in Aqueous Solution Supported by Electrosorption Enrichment and a Gas-Assisted Localized Liquid Discharge Apparatus[J]. ANALYTICAL CHEMISTRY,2017,89(10):5557-5564.
APA Jiang, Tian-Jia.,Yang, Meng.,Li, Shan-Shan.,Ma, Ming-Jun.,Zhao, Nan-Jing.,...&Huang, Xing-Jiu.(2017).In Situ Underwater Laser-Induced Breakdown Spectroscopy Analysis for Trace Cr(VI) in Aqueous Solution Supported by Electrosorption Enrichment and a Gas-Assisted Localized Liquid Discharge Apparatus.ANALYTICAL CHEMISTRY,89(10),5557-5564.
MLA Jiang, Tian-Jia,et al."In Situ Underwater Laser-Induced Breakdown Spectroscopy Analysis for Trace Cr(VI) in Aqueous Solution Supported by Electrosorption Enrichment and a Gas-Assisted Localized Liquid Discharge Apparatus".ANALYTICAL CHEMISTRY 89.10(2017):5557-5564.

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来源：合肥物质科学研究院

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