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纳米TiO 2 -碳纳米管复合膜修饰电极伏安法测定水中α -萘酚和β -萘酚
引用本文:卫应亮,邵晨,韩华峰,张路平,李超,刘宝军.纳米TiO 2 -碳纳米管复合膜修饰电极伏安法测定水中α -萘酚和β -萘酚[J].环境监测管理与技术,2009,21(4):36-39.
作者姓名:卫应亮  邵晨  韩华峰  张路平  李超  刘宝军
作者单位:1. 郑州轻工业学院材料与化学工程学院,河南,郑州,450002;洛阳理工学院环境工程与化学系,河南,洛阳,471023
2. 郑州轻工业学院材料与化学工程学院,河南,郑州,450002
3. 河南省环境保护厅,河南,郑州,450004
基金项目:国家自然科学基金资助项目,河南省杰出青年科研基金资助项目,河南省基础与前沿技术研究计划基金资助项目 
摘    要:摘要:制备了一种新型的纳米TiO2-碳纳米管复合膜修饰电极,在pH值为5.57的NaAc-HAc缓冲溶液中,研究了α-萘酚和β-萘酚在该修饰电极上的电化学行为,据此建立了纳米TiO2-碳纳米管复合膜修饰电极伏安法测定水中α-萘酚和β-萘酚的方法。优化了试验条件,α-萘酚和β-萘酚分别在8.3×10^-7mol/L—1.0×10^-5mol/L和7.8×10^-7mol/L—1.0×10^-5mol/L范围内,浓度与氧化峰电流呈良好的线性关系,开路富集3min,检出限分别为3.5××10^-7mol/L和2.3×10^-7mol/L,模拟水样测定的回收率为97.6%—101%。

关 键 词:α-萘酚  β-萘酚  纳米TiO2  碳纳米管  修饰电极  伏安法  模拟水样

Voltammetric Determination of α-naphthol and β-naphthol by a Nano-TiO2/MWNTs Composite Film Modified Glassy Carbon Electrode
WEI Ying-liang,SHAO Chen,HAN Hua-feng,ZHANG Lu-ping,LI Chao,LIU Bao-jun.Voltammetric Determination of α-naphthol and β-naphthol by a Nano-TiO2/MWNTs Composite Film Modified Glassy Carbon Electrode[J].The Administration and Technique of Environmental Monitoring,2009,21(4):36-39.
Authors:WEI Ying-liang  SHAO Chen  HAN Hua-feng  ZHANG Lu-ping  LI Chao  LIU Bao-jun
Institution:1.Department of Material and Chemical Engineering;Zhengzhou University of Light Industry;Zhengzhou;Henan 450002;China;2.Department of Environment Engineering and Chemistry;Luoyang Institute of Science and Technology;Luoyang;Henan 471023;3.Department of Environmental Protection of Henan Province;Henan 450004;China
Abstract:A new nano-TiOE/MWNTs composite film modified electrode was prepared. In pH 5.57 NaAc-HAc buffer solution, the electrochemical behavior of α-naphthol and β-naphthol were investigated with differential pulse voltammetry at the modified electrode. Under the optimum experimental conditions, the linear calibration ranges were 8.3×10^-7mol/L to 1.0×10^-5mol/L for α-naphthol and 7.8×10^-7mol/L to 1.0×10^-5mol/L for β-naphthol. The concentration and the current of oxidation peak showed good linear relationship. The detection limits of 3.5×10^-7 mol/L for α-naphthol and 2.3×10^-7mol/L for β-naphthol in 3 min open-circuit pre- concentration. The recoveries of simulated water samples were from 97.6% to 101%.
Keywords:α-naphthol  β-naphthol  Nano-TiO2  Carbon nanotubes  Modified electrode  Volammetry  Simulated water samples
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