| 多壁碳纳米管修饰电极测定诺氟沙星 |
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| 引用本文： | 习霞,明亮,曹靖,刘杰.多壁碳纳米管修饰电极测定诺氟沙星[J].化学试剂,2009,31(4). |
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| 作者姓名： | 习霞 明亮 曹靖 刘杰 |
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| 作者单位： | 1. 南通大学化学化工学院,江苏,南通,226007
2. 江苏省神经再生重点实验室,江苏,南通,226007 |
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| 基金项目： | 南通大学自然科学基金，南通市应用研究科技计划项目 |
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| 摘 要： | 运用循环伏安法、线性扫描伏安法及示差脉冲伏安法等测试技术研究了诺氟沙星在多壁碳纳米管修饰玻碳电极上的电化学行为,建立了一种直接测定诺氟沙星的电化学分析方法.结果表明,与裸玻碳电极相比,多壁碳纳米管修饰电极能显著提高诺氟沙星的氧化峰电流.在优化的实验条件下,氧化峰电流与诺氟沙星浓度在1.0×10-7～1.0×10-6mol/L和1.0×10-6～2.5×10-5 moL/L范围呈现良好的线性关系,检出限为3.0×10-8mol/L对1.0×10-5mol/L诺氟沙星溶液平行测定10次的RSD为4.1%.测定了诺氟沙星胶囊中诺氟沙星的含量,结果满意.
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| 关 键 词： | 诺氟沙星 伏安测定 碳纳米管 化学修饰电极 |
Voltammetric determination of norfloxacin at multi-wall carbon nanotube modified electrode |
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| XI Xia,MING Liang,CAO Jing,LIU Jie.Voltammetric determination of norfloxacin at multi-wall carbon nanotube modified electrode[J].Chemical Reagents,2009,31(4). |
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| Authors: | XI Xia MING Liang CAO Jing LIU Jie |
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| Affiliation: | 1.School of Chemistry and Chemical Engineering;Nantong University;Nantong 226007;China;2.Jiangsu Key Laboratory of Neuroregeneration;China |
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| Abstract: | The electrochemical behavior of norfloxacin(NFX) at the multi-wall carbon nanotube(MWCNT) modified glassy carbon electrode(GCE) was investigated by cyclic voltammetry(CV),linear sweep voltammetry(LSV) and differential pulse voltammetry(DPV).The experimental parameters were optimized,and a direct electroanalytical method for determining NFX was developed.The oxidation peak current of NFX was enhanced significantly at the MWCNT modified GCE,in contrast to that obtained at the bare GCE.Under the optimized expe... |
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| Keywords: | norfloxacin voltammetry carbon nanotube chemically modified electrode |
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