| 维生素B2在电化学预处理玻碳电极上的电化学行为及其痕量测定 |
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| 引用本文： | 顾海鹰. 维生素B2在电化学预处理玻碳电极上的电化学行为及其痕量测定[J]. 淮阴师范学院学报(自然科学版), 2003, 2(1): 37-41 |
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| 作者姓名： | 顾海鹰 |
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| 作者单位： | 南通医学院,卫生分析化学教研室,江苏,南通,226001 |
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| 基金项目： | 国家自然科学基金资助项目(20075010) |
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| 摘 要： | 用阳极氧化和循环扫描的方法电化学预处理得到的玻碳电极（PGCE）有一对可逆的氧化还原峰（Epa=-0.073V,Epc=0.044V)。PGCE能大大提高水溶性的维生素如维生素B2（VB2）的电化学响应。实验表明VB2在PGCE上是吸附行为。PGCE具有很强的稳定性，用其能测定痕量的VB2和复合维生素片剂中的VB2，结果令人满意。
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| 关 键 词： | 维生素B2 玻碳电极（GCE） 电化学预处理玻碳电极（PGCE） |
| 文章编号： | 1671-6876(2003)01-0037-05 |
| 修稿时间： | 2002-12-18 |
Electrochemical Behavior and Trace Determination of Vitamin B2 at Electroche mically Pretreated Glassy Carbon Electrode |
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| GU Hai-ying. Electrochemical Behavior and Trace Determination of Vitamin B2 at Electroche mically Pretreated Glassy Carbon Electrode[J]. Journal of Huaiyin Teachers College(Natrual Science Edition), 2003, 2(1): 37-41 |
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| Authors: | GU Hai-ying |
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| Abstract: | 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+1.0?V. 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 Vitamin B 2 (VB 2), VB 2 could be adsorbed at PGCE. The PGCE was rather stable and can be used to trace determination of VB 2, and VB 2 in multivitamin vitamin tablets. |
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| Keywords: | vitamin B2 (VB2) glassy carbon electrode (GCE) electrochemically pretreated glassy carbon electrode (PGCE) |
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