| L-半胱氨酸自组装单层膜修饰金电极测定抗坏血酸 |
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| 引用本文： | 江锡铭,方兆,陶海升.L-半胱氨酸自组装单层膜修饰金电极测定抗坏血酸[J].安徽师范大学学报(自然科学版),2006,29(5):463-466. |
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| 作者姓名： | 江锡铭 方兆 陶海升 |
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| 作者单位： | 安徽师范大学,化学与材料科学学院,安徽,芜湖,241000;安徽师范大学,化学与材料科学学院,安徽,芜湖,241000;安徽师范大学,化学与材料科学学院,安徽,芜湖,241000 |
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| 基金项目： | 安徽省教育厅自然科学基金 |
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| 摘 要： | 选用L-半胱氨酸(L-Cys)通过S-Au键修饰到金电极上形成L-半胱氨酸自组装单分子膜修饰金电极(L-Cys/Au),探讨了该电极形成机理并发现它对抗坏血酸具有电催化作用.进而利用示差脉冲伏安法对各种样品中的抗坏血酸含量测定,结果令人满意.
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| 关 键 词： | 自组装单层膜 L-半胱氨酸 抗坏血酸 循环伏安 示差脉冲 |
| 文章编号： | 1001-2443（2006）05-0463-04 |
| 收稿时间： | 2006-05-11 |
| 修稿时间： | 2006年5月11日 |
Determination of Ascobic Acid at the L-cysteine Self-Assembled Monolayers Modified Gold Electrode |
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| JIANG Xi-ming,FANG Zhao,TAO Hai-sheng.Determination of Ascobic Acid at the L-cysteine Self-Assembled Monolayers Modified Gold Electrode[J].Journal of Anhui Normal University(Natural Science Edition),2006,29(5):463-466. |
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| Authors: | JIANG Xi-ming FANG Zhao TAO Hai-sheng |
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| Institution: | College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China |
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| Abstract: | In this paper, L-cysteine modified Au electrode by S- Au bond to form self-assembled monolayers was investigated to discuss the mechanism of L-cysteine modified Au electrode. We found the electrode could electrocatalyze ascorbic acid. The modified electrode was successfully used to determine the ascorbic acid in various samples by differential pulse voltammertry and the result is satisfying. |
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| Keywords: | self-assembled monolayers L-cysteine ascorbic acid cyclic voltammetry differential pulsevoltammetry |
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