| 氯霉素在羧基化单壁碳纳米管修饰电极上的电催化还原 |
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| 引用本文： | 武云,段德良,周群,王庆忠,曹秋娥,丁中涛.氯霉素在羧基化单壁碳纳米管修饰电极上的电催化还原[J].昆明师范高等专科学校学报,2011(3):111-114. |
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| 作者姓名： | 武云 段德良 周群 王庆忠 曹秋娥 丁中涛 |
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| 作者单位： | 云南大学化学科学与工程学院; |
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| 基金项目： | 云南省教育厅科学研究基金资助项目(08Z0010); 云南大学理工科基金资助项目(2008YB039) |
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| 摘 要： | 利用扫描电镜（SEM）和交流阻抗谱法（EIS）对以滴涂法制备的羧基化单壁碳纳米管（SWCNTs-COOH）修饰玻碳电极进行纳米膜特性表征,并采用循环伏安法（CV）研究了氯霉素（CAP）在其上的电化学行为.结果表明,SWCNTs-COOH修饰的玻碳电极对CAP的还原有良好的电催化作用,根据实验结果推测为双质子双电子还原过程,CAP在修饰电极上的扩散系数及反应速率常数分别为8.76×10-4cm2/s及1.64×10-3s-1.在实验优化选定的测试条件下,还原峰（-0.602 V）电流与CAP的浓度在1.55×10-7-1.97×10-5mol/L范围内呈良好线性关系,检出限达2.02×10-8mol/L.相对标准偏差（n=10）为2.24%,可用于氯霉素的含量测定.
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| 关 键 词： | 羧基化单壁碳纳米管 修饰电极 氯霉素 循环伏安 电催化还原 |
Electrocatalytic Reduction of Chloramphenicol at Modified Glassy Carbon Electrode by Single-walled Carbon Nanotubes with Carboxyl |
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| WU Yun,DUAN De-liang,ZHOU Qun,WANG Qing-zhong,CAO Qiu-e,DING Zhong-tao.Electrocatalytic Reduction of Chloramphenicol at Modified Glassy Carbon Electrode by Single-walled Carbon Nanotubes with Carboxyl[J].Journal of Kunming Teachers College,2011(3):111-114. |
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| Authors: | WU Yun DUAN De-liang ZHOU Qun WANG Qing-zhong CAO Qiu-e DING Zhong-tao |
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| Institution: | WU Yun,DUAN De-liang,ZHOU Qun,WANG Qing-zhong,CAO Qiu-e,DING Zhong-tao(College of Chemical Science and Technology,Yunnan University,Yunnan Kunming 650091,China) |
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| Abstract: | By using the scanning electron microscopy(SEM) and the electrochemical impedance spectroscopy(EIS) construct surface features of the single-walled carbon nanotubes with carboxyl(SWCNTs-COOH) on the N,N-dimethylformide solution and dropped on the surface of the glassy carbon electrode,and by using cyclic voltammetry(CV) studied the electric chemical behavior of Chloramphenicol.The result showed that the chemically modified electrode of coated glassy carbon electrode(SWCNTs-COOH/GCE) has good electrocatalysis... |
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| Keywords: | SWCNTs-COOH modified electrode chloramphenicol cyclic voltammetry(CV) Electrocatalytic reduction |
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