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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (14): 1313-1317. 上一篇    下一篇

研究论文

纳米二氧化锡电极的制备及其用于水体中大肠杆菌的快速计数研究

张文，唐辉，顾静，耿萍，金利通*   

  1. (华东师范大学化学系 上海 200062)
  • 投稿日期:2004-12-17 修回日期:2005-03-18 发布日期:2010-12-10
  • 通讯作者: 金利通

Study on Preparation of Nano-SnO2 Electrode and Its Application to the Fast Counting of E. coli in Water

ZHANG Wen, TANG Hui, GU Jing, GENG Ping, JIN Li-Tong*   

  1. (Department of Chemistry, East China Normal University, Shanghai 200062)
  • Received:2004-12-17 Revised:2005-03-18 Published:2010-12-10

PDF

1441

被引次数

34

制备了新型纳米二氧化锡电极, 将此电极用于水体中大肠杆菌的快速计数研究. 实验结果表明, 用该电极为工作电极, 采用计时电流法能简便、快速、灵敏地对水体中的大肠杆菌进行计数. 通过大肠杆菌脂质过氧化后丙二醛含量的检测, 对大肠杆菌在纳米二氧化锡电极上的电化学响应机理进行了初步的探讨.

关键词: 纳米二氧化锡电极, 大肠杆菌, 快速计数, 脂质过氧化, 计时电流法

A novel nano-SnO2 electrode was fabricated and applied to the fast counting of E. coli in water. The nano-SnO2 electrode was used as bioelectrochemical sensor in chronoamperometry to count fastly E. coli with the advantages of quickness, simple operation and high sensitivity. Through assaying the MDA content of E. coli solution treated by electrochemical oxidation, the oxidation mechanism of E. coli at nano- SnO2 electrode was investgated and satisfactory results were obtained.

Key words: nano-SnO2 electrode, E. coli, fast counting, lipid peroxide, chronoamperometry