Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (1): 33.

• Articles • Previous Articles     Next Articles

Electrochemical Behavior and Determination of Indole-3-acetic Acid at NanoAu/MWNTs/chitosant Sensor

ZHANG Xue-Yu1, LIU Xing-Mei1, LIU Wei-Lu1, YANG Ming2*, ZHANG Zhi-Quan1*   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, China;
    2. Department of Breast Surgery, The First Hospital of Jilin University, Changchun 130021, China
  • Received:2009-10-15 Online:2010-01-10 Published:2010-01-10
  • Contact: YANG Ming. E-mail: zzq@jlu.edu.cn; ZHANG Zhi-Quan. E-mail: yangming1967@163.com
  • Supported by:

    国家自然科学基金(批准号: 20605009)资助.

Abstract:

This study was making use of chitosant as a dispersion medium of multi-walled carbon nanotubes(MWNTs) and formed a stabilizating nanoAu-MWNTs-CS-GCE layer via MWNTs/chitosant with positive charges adsorption of nanoAu with negative charges. Electrochemical method was selected to investigate the performance of the modified electrode and the electrochemical behavior of indole-3-acetic acid. The catalytic current of IAA versus its concentration had a good linearity in a concentration range of 5—200 μmol/L at around -0.78 V with a detection limit of 8.33×10-6 mol/L and a correlation coefficient of 0.9997.

Key words: Indole-3-acetic acid; Chitosant; Multi-walled carbon nanotubes(MWNTs); NanoAu; Cyclic voltammogram

TrendMD: