Electrochemical Oxidation of Cysteine at a Film Gold Modified Carbon Fiber Microelectrode Its Application in a Flow-Through Voltammetric Sensor

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標題:	Electrochemical Oxidation of Cysteine at a Film Gold Modified Carbon Fiber Microelectrode Its Application in a Flow-Through Voltammetric Sensor
作者:	Wang, Lai-Hao Huang, Wen-Shiuan
貢獻者:	醫藥化學系
關鍵字:	Micro Au-Modified Carbon Fiber Electrode Pulse Amperometric Detection Cysteine
日期:	2012-03
上傳時間:	2014-03-21 16:17:20 (UTC+8)
出版者:	Mdpi Ag
摘要:	A flow-electrolytical cell containing a strand of micro Au modified carbon fiber electrodes (CFE) has been designedand characterized for use in a voltammatric detector for detecting cysteine using high-performance liquid chromatography. Cysteine is more efficiently electrochemical oxidized on a Au /CFE than a bare gold and carbon fiber electrode. The possible reaction mechanism of the oxidation process is described from the relations to scan rate, peak potentials and currents. For the pulse mode, and measurements with suitable experimental parameters, a linear concentration from 0.5 to 5.0 mg.L-1 was found. The limit of quantification for cysteine was below 60 ng.mL(-1).
關聯:	Sensors, 12(3), 3562-3577
显示于类别:	[食藥產業暨檢測科技系(含五專)] 期刊論文

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