抗坏血酸在石墨烯微片修饰玻碳电极上的电化学行为及其测定
Chinese Journal of Analysis Laboratory（2013）
Abstract
基于石墨烯微片修饰玻碳电极对抗坏血酸的电催化作用,建立了测定抗坏血酸的电化学分析方法.石墨烯微片修饰玻碳电极与裸玻碳电极相比,显著提高了抗坏血酸的氧化峰电流,降低了氧化峰电位,提高了测定的灵敏度.该电极测定抗坏血酸的线性范围为5.0×10-5 ～ 2.5×10-2mol/L,最低检测限为6.5×10-7mol/L(信噪比=3).
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Key words
Graphene nanoplatelets modified glass carbon electrode,Voltammetric determination,Ascorbic acid
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