中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
  4. 中科院合肥智能机械研究所
Electrochemically etched gold wire microelectrode for the determination of inorganic arsenic

文献类型：期刊论文

作者Zhou, Chi1,2; Yang, Meng1,2; Li, Shan-Shan1,2; Jiang, Tian-Jia1,2; Liu, Jin-Huai1; Huang, Xing-Jiu1; Chen, Xing1
刊名ELECTROCHIMICA ACTA
出版日期2017-03-20
卷号231期号:无页码:238-246
关键词Electrochemical Etching Gold Wire Microelectrode Electrochemical Determination Arsenite Arsenate
DOI10.1016/j.electacta.2017.01.184
文献子类Article
英文摘要An electrochemical method for direct determination of inorganic arsenic [As(III), As(V), and total inorganic arsenic] was developed using an electrochemically etched gold wire microelectrode (Au-ME) by square wave anodic stripping voltammetry. Bromide was adopted to facilitate the electrochemical etching of gold through its complexation with gold ions, and controllably etched gold wire microelectrode can be obtained by adjusting the linear sweep voltammetry recycling numbers. Although the diameter of Au-ME decreases from 25.67 to 15.41 mm, for the determination of As(III) in 0.5 M H2SO4, the sensitivity increases 1.5-fold to 6.8 mu A cm(-2) ppb(-1) and the limit of detection (LOD) decreases 2.8-fold to 2.6 ppb; for determination of As(V) in 0.25 M HCl, the sensitivity increases 1.6-fold to 2.6 mu A cm(-2) ppb(-1) and LOD decreases 2.5-fold to 3.9 ppb. The As(V) deposition mechanism is put forward: first, chemically reduce to As(III) associated with active chlorine, and then electrochemically reduce to As(0), which experience two reduction step. Given that the LODs for both As(III) and As(V) are lower than the arsenic guideline value of 10 ppb, Au-ME shows efficiency in determining trace arsenic when applied to real environmental samples. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词ANODIC-STRIPPING VOLTAMMETRY ; GLASSY-CARBON ELECTRODE ; MICROWIRE ELECTRODE ; SENSITIVE DETECTION ; AS(III) OXIDATION ; ROOM-TEMPERATURE ; NATURAL-WATERS ; MERCURY ; AU ; SEAWATER
WOS研究方向Electrochemistry
语种英语
WOS记录号WOS:000398324500027
资助机构National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National Natural Science Foundation of China(21377131 ; National Natural Science Foundation of China(21377131 ; National Natural Science Foundation of China(21377131 ; National Natural Science Foundation of China(21377131 ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 21475133 ; 21475133 ; 21475133 ; 21475133 ; 61474122 ; 61474122 ; 61474122 ; 61474122 ; 51202052) ; 51202052) ; 51202052) ; 51202052) ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National Basic Research Program of China(2011CB933700 ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National High Technology Research and Development Program of China (863 Program)(2013AA065602) ; National Natural Science Foundation of China(21377131 ; National Natural Science Foundation of China(21377131 ; National Natural Science Foundation of China(21377131 ; National Natural Science Foundation of China(21377131 ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 2013CB934300) ; 21475133 ; 21475133 ; 21475133 ; 21475133 ; 61474122 ; 61474122 ; 61474122 ; 61474122 ; 51202052) ; 51202052) ; 51202052) ; 51202052)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/32885]  
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, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Chi,Yang, Meng,Li, Shan-Shan,et al. Electrochemically etched gold wire microelectrode for the determination of inorganic arsenic[J]. ELECTROCHIMICA ACTA,2017,231(无):238-246.
APA Zhou, Chi.,Yang, Meng.,Li, Shan-Shan.,Jiang, Tian-Jia.,Liu, Jin-Huai.,...&Chen, Xing.(2017).Electrochemically etched gold wire microelectrode for the determination of inorganic arsenic.ELECTROCHIMICA ACTA,231(无),238-246.
MLA Zhou, Chi,et al."Electrochemically etched gold wire microelectrode for the determination of inorganic arsenic".ELECTROCHIMICA ACTA 231.无(2017):238-246.

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。