| 载入树状分子内部的纳米金修饰玻碳电极的制备及其对亚硝酸根的电化学测定 |
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| 引用本文： | 李玲,伍小艳,杨帅,许云波,祝宁宁. 载入树状分子内部的纳米金修饰玻碳电极的制备及其对亚硝酸根的电化学测定[J]. 分析测试学报, 2011, 30(9): 1033-1038. DOI: 10.3969/j.issn.1004-4957.2011.09.015 |
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| 作者姓名： | 李玲 伍小艳 杨帅 许云波 祝宁宁 |
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| 作者单位： | 上海师范大学生命与环境科学学院化学系,上海,200234 |
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| 基金项目： | 国家自然科学基金资助项目(20705020) |
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| 摘 要： | 建立了一种简单、可靠的基于载入树状分子内部的纳米金修饰电极用于亚硝酸根测定的电化学分析方法.将壳聚糖(Chit)修饰在玻碳电极表面,在偶联活化剂碳二亚胺存在的条件下,4.5代羧基末端的树状分子(Dendrimer)通过其外围的羧基与壳聚糖的氨基形成酰胺键而连接在电极表面.Au(Ⅲ)通过与树状分子内部氮的配位作用被结合在...
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| 关 键 词： | 树状分子 壳聚糖 纳米金 电化学 亚硝酸根 |
Preparation of Glassy Carbon Electrode Modified with Au Nanoparticles Encapsulated in Dendrimers and Its Application for Determination of Nitrite |
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| LI Ling,WU Xiao-yan,YANG Shuai,XU Yun-bo,ZHU Ning-ning. Preparation of Glassy Carbon Electrode Modified with Au Nanoparticles Encapsulated in Dendrimers and Its Application for Determination of Nitrite[J]. Journal of Instrumental Analysis, 2011, 30(9): 1033-1038. DOI: 10.3969/j.issn.1004-4957.2011.09.015 |
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| Authors: | LI Ling WU Xiao-yan YANG Shuai XU Yun-bo ZHU Ning-ning |
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| Affiliation: | LI Ling,WU Xiao-yan,YANG Shuai,XU Yun-bo,ZHU Ning-ning(Department of Chemistry,College of Life Environmental Sciences,Shanghai Normal University,Shanghai 200234,China) |
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| Abstract: | A simple and reliable method was developed for the electrochemical determination of nitrite based on glassy carbon electrode(GCE) modified with Au nanoparticles(AuNPs)encapsulated in dendrimers.Firstly,chitosan(Chit) was modified on the GCE,and in the presence of coupling agent carbodiimide,carboxyl-terminated poly(amidoamine)(generation 4.5) dendrimers were covalently attached onto chitosan through the formation of amide bonds between carboxylic acid groups of the dendrimer and amine groups of chitosan.The... |
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| Keywords: | dendrimers chitosan Au nanoparticles(AuNPs) electrochemical nitrite |
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