| 吲哚乙酸在纳米金/碳纳米管/壳聚糖修饰玻碳电极上的电化学行为及其检测 |
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| 引用本文： | 张学钰,刘兴梅,刘伟禄,杨明,张志权. 吲哚乙酸在纳米金/碳纳米管/壳聚糖修饰玻碳电极上的电化学行为及其检测[J]. 高等学校化学学报, 2010, 31(1): 33-37 |
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| 作者姓名： | 张学钰 刘兴梅 刘伟禄 杨明 张志权 |
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| 作者单位： | 1. 吉林大学化学学院, 长春 130012; 2. 吉林大学第一医院乳腺外科, 长春 130021 |
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| 基金项目： | 国家自然科学基金(批准号:20605009)资助 |
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| 摘 要： | 以壳聚糖(CS)为多壁碳纳米管(MWNTs)的分散介质, 通过MWNTs/CS膜上大量氨基静电吸附纳米金粒子(nanoAu), 使玻碳电极(GCE)表面形成稳定的nanoAu-MWNTs-CS-GCE修饰层, 并采用电化学方法初步研究了该修饰电极的性能. 探讨了吲哚乙酸(IAA)在该修饰电极上的电化学行为, 结果表明, 在5～200 μmol/L浓度范围内以及0.78 V电位条件下, 以循环伏安法(CV)测得的氧化峰电流变化值与c(IAA)呈良好的线性关系, 其回归方程为y=2.34×10-4+0.14x, 检出限为8.33×10-6 mol/L, 相关系数为0.9997.
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| 关 键 词： | 吲哚乙酸 壳聚糖 碳纳米管 纳米金 循环伏安法, |
| 收稿时间： | 2009-10-15 |
Electrochemical Behavior and Determination of Indole-3-acetic Acid at NanoAu/MWNTs/chitosant Sensor |
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| ZHANG Xue-Yu,LIU Xing-Mei,LIU Wei-Lu,YANG Ming,ZHANG Zhi-Quan. Electrochemical Behavior and Determination of Indole-3-acetic Acid at NanoAu/MWNTs/chitosant Sensor[J]. Chemical Research In Chinese Universities, 2010, 31(1): 33-37 |
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| Authors: | ZHANG Xue-Yu LIU Xing-Mei LIU Wei-Lu YANG Ming ZHANG Zhi-Quan |
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| Affiliation: | 1. College of Chemistry, Jilin University, Changchun 130012, China;2. Department of Breast Surgery, The First Hospital of Jilin University, Changchun 130021, China |
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| Abstract: | This study was making use of chitosant as a dispersion medium of multi-walled carbon nanotubes(MWNTs) and formed a stabilizating nanoAu-MWNTs-CS-GCE layer via MWNTs/chitosant with positive charges adsorption of nanoAu with negative charges. Electrochemical method was selected to investigate the performance of the modified electrode and the electrochemical behavior of indole-3-acetic acid. The catalytic current of IAA versus its concentration had a good linearity in a concentration range of 5-200 μmol/L at around -0.78 V with a detection limit of 8.33×10~(-6) mol/L and a correlation coefficient of 0.9997. |
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| Keywords: | Indole-3-acetic acid Chitosant Multi-walled carbon nanotubes(MWNTs) NanoAu Cyclic voltammogram |
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