| 半胱氨酸自组装纳米金修饰电极测定抗坏血酸 |
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| 引用本文： | 叶友胜,王满震,付瑞华,张宝剑,孙鹏鹏,胡小杰.半胱氨酸自组装纳米金修饰电极测定抗坏血酸[J].巢湖学院学报,2014(6):72-74. |
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| 作者姓名： | 叶友胜 王满震 付瑞华 张宝剑 孙鹏鹏 胡小杰 |
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| 作者单位： | 1. 巢湖学院化学化工与生命科学学院,安徽 巢湖,238000
2. 青州第二中学,山东 青州,262500 |
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| 基金项目： | 巢湖学院博士启动基金，大学生创新创业训练计划项目 |
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| 摘 要： | 本文采用循环伏安法在氧化铟锡导电玻璃上电沉积金,利用自组装技术制备了半胱氨酸-纳米金修饰电极,并对抗坏血酸进行检测。实验结果表明,半胱氨酸-纳米金修饰电极与葡萄糖具有良好的电催化效应,其氧化峰电流对抗坏血酸在6×10-6~6×10-4mol L-1的范围内呈良好线性关系,检出限为2.1×10-6 mol L-1。并用于实际样品的测定,取得了较好的结果。
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| 关 键 词： | 金纳米粒子 半胱胺酸 自组装 抗坏血酸 |
DETERMINATION OF ASCORBIC ACID BY USING THE MODIFIED ELECTRODE THROUGH SELF-ASSEMBLED CYSTEINE ON GOLD NANOPARTICLES |
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| YE You-sheng,WANG Man-zhen,FU Rui-hua,ZHANG Bao-jian,SUN Peng-peng,HU Xiao-jie.DETERMINATION OF ASCORBIC ACID BY USING THE MODIFIED ELECTRODE THROUGH SELF-ASSEMBLED CYSTEINE ON GOLD NANOPARTICLES[J].Chaohu College Journal,2014(6):72-74. |
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| Authors: | YE You-sheng WANG Man-zhen FU Rui-hua ZHANG Bao-jian SUN Peng-peng HU Xiao-jie |
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| Institution: | YE You-sheng, WANG Man-zhen, FU Rui-hua, ZHANG Bao-jian, SUN Peng-peng, HU Xiao-jie (1 School of Chemistry, Chemical Engineering and Life Sciences, Chaohu College, Chaohu Anhui 238000; 2 Qingzhou No. 2 Middle School, Qingzhou Shandong 262500) |
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| Abstract: | This paper uses the cyclic voltammetric method to obtain gold electrodeposited directly on the surface of the conduc-tive glass of the indium tin oxide and the cysteine-gold nanoparticles modified electrode is exploited by using self-assembly method. And then the ascorbic acid can be tested. The experiment shows that the cysteine-gold nanoparticles modified elec-trode and glucose have the good electro catalytic effect. The oxidation peak current shows the good linear relations for the ascorbic acid within the range from 6×10^-6 to 6×10^-4mol L^-1 with detection limit of 2. 1×10^-6 mol L^-1（n=5）. The method is ap-plied to the determination of ascorbic acid in real samples and gives satisfactory results. |
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| Keywords: | gold nanoparticles cysteine self-assembly ascorbic acid |
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