Chemical Journal of Chinese Universities ›› 2011, Vol. 32 ›› Issue (11): 2528-2532.

• Articles • Previous Articles     Next Articles

Preparation of Novel Molecular Imprinted Film/Au nanoparticlar Modified Electrode for Bromophos ethyl and Its Application

WANG Jing-Jing, JIANG Xin, LÜ Shi-Yan, WEI Guo-Fen, YE Tai, LÜ Jian-Quan*   

  1. Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi 435002, China
  • Received:2010-12-01 Revised:2011-04-02 Online:2011-11-10 Published:2011-10-14
  • Contact: Lü Jian-Quan E-mail: jianquanlu@eyou.com
  • Supported by:

    教育部重点项目(批准号: 206096)、湖北省自然科学基金重大项目(批准号: 2010CDA061)、湖北省教育厅创新团队项目和重点项目(批准号: D200922005)和污染物分析与资源化技术湖北省重点实验室开放基金(批准号: KY2010M03)资助.

Abstract: A novel molecular imprinted(MIP) film/Au nanoparticles(AuNP) modified glassy carbon electrode(GCE), L-Cys/AuNP/GCE(MIP), was prepared by electrochemical deposition of gold nanoparticles and electrochemical assembly of L-Cys at the surface of GCE using bromophos ethyl as template molecular. The results indicate that L-Cys/AuNP/GCE(MIP) can selectively recognize bromophos ethyl and be applied for the electrochemical determination of bromophos ethyl in the spiked sample. Under the optimized conditions, the electrochemical response is directly proportional to the bromophos ethyl concentration in the range from 2.5 to 17.5 μmol/L, with a detection limit(S/N=3) of 0.83 μmol/L. The experiment results also show that the L-Cys/AuNP/GCE(MIP) has good stability and reproducibility.

Key words: Bromophos ethyl, Imprinted membrane, Au nanoparticlars, Modified electrode

CLC Number: