应用化学

• 研究论文 • 上一篇    下一篇

氯丙嗪分子印迹敏感膜传感器的制备与应用

刘蓉,钟桐生*,龙立平,尹志芳,曹伟   

  1. (湖南城市学院化学与环境工程学院 益阳 413000)
  • 收稿日期:2013-01-11 修回日期:2013-03-11 出版日期:2013-11-10 发布日期:2013-11-10
  • 通讯作者: 钟桐生,教授; Tel:0737-6353033; Fax:0737-6353049; E-mail:tszhong67@126.com; 研究方向:电化学分析
  • 基金资助:
    湖南省科技计划项目(2012FJ3023),益阳市指导性科技计划项目(2012JZ32),湖南城市学院大学生创新性项目(CX201236)

Fabrication and Application of Chlorpromazine Molecular Imprinting Film Sensor

LIU Rong, ZHONG Tongsheng*, LONG Liping, YIN Zhifang, CAO Wei   

  1. (College of Chemistry & Environmental Engineering,Hunan City University,Yiyang 413000,China)
  • Received:2013-01-11 Revised:2013-03-11 Published:2013-11-10 Online:2013-11-10

摘要: 以氯丙嗪为模板分子,邻氨基酚为功能单体,在金电极表面电聚合制备具有特异性识别孔穴的氯丙嗪分子印迹敏感膜(MIP)。 采用循环伏安法(CV)、差分脉冲伏安法(DPV)等研究了印迹膜的性能、结构和分子印迹效应,并与其结构相似的化合物奋乃静和异丙嗪的选择性响应进行了比较,发现传感器对氯丙嗪具有良好的选择性。 氯丙嗪浓度在6.0×10-7~9.0×10-5 mol/L范围内与峰电流呈线性关系,线性方程为:I(μA)=61.25lg c(μmol/L)+23.47(r=0.9975),根据DL=3δb/s计算检出限为2.0×10-7 mol/L,该传感器具有良好的重复性、再生性和高灵敏度。

关键词: 氯丙嗪, 分子印迹, 电化学传感器, 电聚合

Abstract: A sensitive chlorpromazine sensor based on molecularly imprinted membrane(MIP) was fabricated with chlorpromazine as template molecule and o-aminophenol as functional monomers. The performance of MIP and the electrochemical behavior of molecular imprinted sensor were obtained by cyclic voltammetry(CV) and differential pulse voltammetry(DPV). The sensor exhibits good selectivity and sensitivity for measuring chlorpromazine compared with the structurally-related compounds of promethazine and perphenazine. The linear relationship between the peak current and chlorpromazine concentration is found at the range of 6.0×10-7~9.0×10-5 mol/L, the liner equation is I(μA)=61.25lg c(μmol/L)+23.47(r=0.9975), the limit of detection is 2.0×10-7 mol/L. This sensor has many advantages such as high sensitivity, good reproducibility and repeatability.

Key words: chlorpromazine, molecularly imprinting, electrochemical sensor, electropolymerization

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