聚茜素红S功能化碳纳米管修饰电极测定水中的对苯二酚  

Determination of Hydroquinone in Water by PolyAlizarin Red S Functionalized Carbon Nanotubes Modified Electrode

作　　者：王世娟[1] 朱超云[1] 宋伟[1] 

机构地区：[1]南京化工职业技术学院应用化学系,南京市葛关路625号210048

出　　处：《光谱实验室》2011年第5期2227-2231,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：南京化工职业技术学院科研项目(NHKY-2010-05)

摘　　要：通过电聚合制备了聚茜素红S-多壁碳纳米管修饰丝网印刷电极,用于水中对苯二酚的测定。考察了对苯二酚在修饰电极上的电化学行为。该修饰电极对对苯二酚的氧化还原反应具有明显的电催化作用。用示差脉冲伏安法测定了水中对苯二酚的含量,其氧化峰电流在5.02×10-5—1.52×10-3m ol/L浓度范围内呈良好的线性关系,检出限为2.37×1-0 5m ol/L,加样回收率在98.1%—106.9%之间。所制备的修饰电极可应用于水中对苯二酚的现场快速检测。The poly-alizarin red S-multi-wall carbon nanotubes modified screen-printed electrode（ARS-MWCNTs/SPE） was fabricated through electro-polymerization for the determination of hydroquinone in water.The electrochemical behavior of hydroquinone on modified electrode was investigated,and the ARS-MWCNTs/SPE showed a strong electro-catalytic activity for the oxidation-reduction of hydroquinone.For the determination of hydroquinone in water samples by differential pulse voltammetry,the peak currents of hydroquinone were linear to concentrations in the range of 5.02×10-5—1.52×10-3mol/L,with the detection limit of 2.37×10-5 mol/L,and the recovery found by standard addition method was in the range of 98.1%—106.9%.The ARS-MWCNTs/SPE can be applied to the rapid insitu determination of hydroquinone in water.

关 键 词：茜素红S 多壁碳纳米管 修饰电极 对苯二酚 

分 类 号：O657.14[理学—分析化学]