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.
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.
出处
《安徽师范大学学报（自然科学版）》
CAS
2006年第5期463-466,共4页
Journal of Anhui Normal University(Natural Science)
基金
安徽省教育厅自然科学研究基金项目资助(2005kj126)
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
self-assembled monolayers
L-cysteine
ascorbic acid
cyclic voltammetry
differential pulsevoltammetry
