Electrochemical behavior and simultaneous determination of vitamin B2, B6, and C at electrochemically pretreated glassy carbon electrode

被引：71

作者：

Gu, HY ^{[1
]}

Yu, AM ^{[1
]}

Chen, HY ^{[1
]}

机构：

[1] Nanjing Univ, Dept Chem, Lab Mesoscop Mat & Chem, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

来源：

ANALYTICAL LETTERS | 2001年 / 34卷 / 13期

基金：

中国国家自然科学基金;

关键词：

vitamin B-2; vitamin B-6; vitamin C; electrochemically pretreated GCE; simultaneous determination;

D O I：

10.1081/AL-100107301

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An electrochemically pretreated glassy carbon electrode (PGCE) was achieved by anodic oxidation at 1.8 V and following potential cycling in the potential range from -0.8 to + 1.0V. The resulting PGCE gave well-defined redox peaks with E-pa = -0.073 V E-pc = 0.044 V. The PGCE showed good activity in improving the electrochemical responses of some water-soluble Vitamins, such as Vitamin (VB2), Vitamin (VB6) and Vitamin (VC). VB2, VB6 could be adsorbed at PGCE and VC proceeded with an electrocatalytic process. The electrochemical behavior of VB6 at PGCE depended on the potential scanning method and the pretreatment process of the electrode. The PGCE was rather stable and can be used to simultaneously determine these vitamins in multivitamin tablets.

引用

页码：2361 / 2374

页数：14

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