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	An electrochemical method for selective detection of dopamine by depleting ascorbic acid in diffusion layer
	Zhu, Feng ; Yan, Jiawei ; Sun, Chunfeng ; Zhang, Xuan ; Mao, Bingwei ; Mao BW(毛秉伟)
	2010-01
关键词	Selective detection Diffusion layer Electrochemical depletion Dopamine
英文摘要	A facile method for selective detection based on the concept of electrochemical depletion of interfering species in diffusion layer was established. The feasibility of the method was verified by detecting dopamine in the presence of ascorbic acid. By applying a proper step potential to working electrode, at which interfering species, ascorbic acid, is oxidized while dopamine is kept unconsumed, an interferent-depleted region is thus created in the diffusion layer of the working electrode. Then the target analyte is detected by applying a follow-up linear sweep voltammetry with faster sweep rate to ensure the amount of the interfering species that diffuses to the electrode surface is negligible. The influence of step potential, step duration and sweep rate oil dopamine detection has been systematically investigated. Since the proposed method only requires easily achievable potential control and commonly used electrode without modification, facile and thus high reproducibility is expected. (C) 2010 Elsevier B.V. All rights reserved.; Natural Science Foundation of China (NSFC) [20973144, 20620130427]; Special Funds for Major State Basic Research Project of China [2007CB935600, 2009CB220102]; MOST [2007DFC40440]
语种	英语
出版者	ELSEVIER SCIENCE SA
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1016/j.jelechem.2010.01.006]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhu, Feng,Yan, Jiawei,Sun, Chunfeng,et al. An electrochemical method for selective detection of dopamine by depleting ascorbic acid in diffusion layer[J],2010.
APA	Zhu, Feng,Yan, Jiawei,Sun, Chunfeng,Zhang, Xuan,Mao, Bingwei,&毛秉伟.(2010).An electrochemical method for selective detection of dopamine by depleting ascorbic acid in diffusion layer..
MLA	Zhu, Feng,et al."An electrochemical method for selective detection of dopamine by depleting ascorbic acid in diffusion layer".(2010).

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