湖北工程学院学报2016，Vol.36Issue(3)：10-15,6.
双酚A和对硝基苯胺在化学修饰电极上的电化学行为及其测定
Simultaneous Determination of Bisphenol A and p-Nitroaniline Based on Chitosan-FC134-MWNT Film Modified Electrode
刘秋香 1杨程 1高翔云 1张琦 1陈艳玲2
作者信息
- 1. 江苏省地质调查研究院，江苏 南京 210018
- 2. 中国地质大学 武汉 材料科学与化学工程学院，湖北 武汉 430074
- 折叠
摘要
Abstract
An electrochemical sensing platform (MFC/GCE)was developed based on the composite of multi-walled carbon nano-tubes (MWNT)and chitosan (CTS),which was characterized by elec-trochemical impedance spectroscopy.The electrochemical behaviors and the simultaneous detection of Bisphenol A (BPA)and p-Nitroaniline (PNA)were studied by cyclic voltammetry and differential pulse voltammetry.The results indicated that this modified electrode exhibited excellent electrocata-lytic activity towards the oxidation of BPA and PNA.BPA and PNA showed two well-defined oxida-tion peaks at 0.405 V and 0.817 V at the modified electrode in pH 8.0 PBS buffer solution.The oxi-dation peaks of BPA and PNA were separated at 412 V.Under the optimal conditions,the linear re-sponse of BPA was between 5.0×10-7mol/L and 1.0×10-4mol/L(r=0.997 0);the detection limit was 2.0×10-7mol/L;the linear response of PNA was between 1.0×10-6mol/L and 1.0×10-3mol/L (r=0.996 0),and the detection limit was 1.0×10-6mol/L.The MFC/GCE revealed good sensitivi-ty,selectivity and stability for simultaneous determination of BPA and PNA.The method has been applied to the simultaneous detection of BPA and PNA in waste water with the recovery of 98.7% to 103%.关键词
双酚 A/对硝基苯胺/壳聚糖/碳纳米管/修饰电极/微分脉冲伏安法Key words
bisphenol A(BPA)/p-Nitro-aniline(PNA)/chitosan(CTS)/multi-walled carbon nano-tubes(MWNT)/modified electrode/differential pulse voltammetry(DPV)分类
化学化工引用本文复制引用
刘秋香,杨程,高翔云,张琦,陈艳玲..双酚A和对硝基苯胺在化学修饰电极上的电化学行为及其测定[J].湖北工程学院学报,2016,36(3):10-15,6.
