胺菊酯分子印迹电化学传感器的制备及性能
Preparation and Performance of Molecularly Imprinted Electrochemical Sensor of Tetramethrin
摘 要
以邻氨基酚(OAP)为单体,胺菊酯为印迹分子,采用循环伏安法在玻碳电极上电化学聚合制备了胺菊酯分子印迹敏感膜。采用场发射扫描电镜(FESEM)和电化学方法对该印迹传感器进行了表征。结果表明:分子印迹传感器敏感膜洗脱前和洗脱后在形貌结构和电化学特性方面有明显的不同。以铁氰化钾为电化学探针,利用差分脉冲法(DPV)研究了传感器的响应性能,胺菊酯浓度在10.0~100 nmol·L-1范围内,传感器峰电流变化(Δi)与胺菊酯浓度c呈线性关系,检出限(3σ)为5.8 nmol·L-1。该传感器的响应时间为10 min,测定相对标准偏差(n=7)为2.76%,回收率在96.0%~103.0%之间。
邻氨基酚
胺菊酯
电化学传感器
Molecular imprinting
o-Aminophenol
Tetramethrin
Electrochemical sensor
Abstract
A sensitive film of tetramethrin was imprinted molecularly on glassy carbon electrode by cyclic voltammetric electropolymerization using o-aminophenol as the monomer and tetramethrin as imprinting molecules. The imprinted electrochemical sensor obtained was characterized by methods of field emission scanning electron microscope and electrochemistry, e.g., cyclic voltammetry, differential pulse voltammetry (DPV) and etc. It was shown by the experimental results, significant differences in morphological structure and electrochemical characteristic were observed before and after the removal of the imprinted molecules. The response property of the sensor was studied by DPV, using K3［Fe(CN)6］ as electrochemical probe. Linear relationship between values of change in peak current (Δi) of the sensor and concentration of tetramethrin was obtained in the range of 10.0-100 nmol·L-1, with its detection limit (3σ) of 5.8 nmol·L-1. Time of response of the sensor was found within 10 min. Value of RSD (n=7) found was 2.76%. Recovery of tetramethrin was tested by standard addition method, giving results in the range of 96.0%-103.0%.
中图分类号 O657.1
所属栏目
基金项目 深圳市科技计划项目(No. 2108K037BC)资助
收稿日期 2011/1/6
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备注栾崇林(1965-),男,山东青岛人,教授,博士,主要研究方向为电化学传感器。
引用该论文: LUAN Chong-lin,LI Ming-jie,LI Zhong-jin,SU Xiu-xia,JIANG Xiao-hua. Preparation and Performance of Molecularly Imprinted Electrochemical Sensor of Tetramethrin[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2011, 47(8): 885～888
栾崇林,李铭杰,李仲谨,苏秀霞,蒋晓华. 胺菊酯分子印迹电化学传感器的制备及性能[J]. 理化检验－化学分册, 2011, 47(8): 885～888
被引情况:
【1】张进,姚桃花,王燕青, "分子印迹电化学传感器研究进展",理化检验－化学分册 49, 1017-1023(2013)
【2】张进,徐海丽,周权宝,田浪, "用印迹聚合膜修饰电极循环伏安法间接测定除草剂苄嘧磺隆",理化检验－化学分册 49, 1029-1033(2013)
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【2】莫小荣,郑春慧,陈建伟,等.浊点萃取-异辛烷反萃取-气相色谱测定茶叶中拟除虫菊酯农药残留［J］.分析化学, 2009,37(8):1178-1182．
【3】VAZQUEZ P P, AHMED R, MUGHARI M, et al. Solid-phase microextraction (SPME) for the determination of pyrethroids in cucumber and watermelon using liquid chromatography combined with post-column photochemically in-duced fluorimetry derivatization and fluorescence detection［J］. Anal Chim Acta, 2008,607(1):74-82．
【4】KUANG Hua, MIAO Hong, HOU Xiao-lin, et al. Simultaneous determination of 16 pyrethroid residues in tea samples using gas chromatography and ion trap mass spectrometry［J］. Chromatogr Sci, 2010,48(9):771-776．
【5】LU Cai-hong, LIU Xing-ang, DONG Feng-shou, et al. Simultaneous determination of pyrethrins residues in teas by ultra-performance liquid chromatography/tandem mass spectrometry［J］. Anal Chim Acta, 2010,678(1):56-62．
【6】KONG Ye, ZHANG Qi, ZHANG Wen, et al. Development of a monoclonal antibody-based enzyme immunoassay for the pyrethroid insecticide deltamethrin［J］. Agric Food Chem, 2010,58(14):8189-8195．
【7】刘志航,宦双燕,浣石,等.基于分子印迹的电化学传感器研究进展［J］.化学传感器, 2005,25(4):1-8．
【8】PILETSKYS S A, PILETSKAYA E V, ELGERSMA A V, et al. A trazinesensing by molecularly imp rinted membranes［J］. Biosensors and B ioelectronics, 1995,10:959-964.
【9】SERGEYEVA T A, PILETSKY S A, BROYKO A A, et al. Conductimetric sensor for atrazine detection based on molecularly imprinted polymer membranes［J］. Analyst, 1999,124:331-334．
【10】SERGEYEVA T A, PILETSKY S A, BROYKO A A, et al. Selective recognition of atrazine by molecularly imprinted polymer membranes. D evelopment of conductometric sensor for herbicides detection［J］. Anal Chim Acta, 1999,392:105-111．
【11】GONG Ji-lai, GONG Fu-chun, KUANG Ying, et al. Capacitive chemical sensor for fenvalerate assay based on electropolymerized molecularly imprinted polymer as the sensitive layer［J］. Anal Bioanal Chem, 2004,379(2):302-307．
【12】DELANEY T P, MIRSKY V M, ULBRICHT M, et al. Impedometric herbicide chemosensors based on molecularly imprinted polymers［J］. Anal Chim Acta, 2001,435:157-162．
【13】孟子晖,李元光,刘琴,等.通过分子烙印聚合物膜电阻的变化检测甲基膦酸异丙酯［J］.分析化学, 2001,29(4):490-490．
【14】YAMAZAKI T, MENG Z, MOSBACH K, et al. A novel amperometric sensor for organophosphotriester insecticides detection employing catalytic polymer m im icking phosphotriesterase catalytic center［J］. Electrochemistry, 2001,69(12):969-972．
【15】MARX S, ZZLTSMAN A, TURYAN I, et al. Parathion sensor based on molecularly imp rinted sol2gel films［J］. Anal Chem, 2004,76:120-126．
【16】廉继英,张雷.聚(苯胺-co-邻氨基酚)修饰玻碳电极的制备及其对抗坏血酸的电化学氧化［J］.分析化学, 2007,35(11):1575-1580．
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