Citation: Jing GU, Wen ZHANG, Yu Feng YANG, Lei ZHENG, Zi Rong WU, Li Tong JIN. Preparation of the Ag₂O₂-PbO₂ Modified Electrode and Its Application towards Escherichia coli Fast Counting in Water[J]. Chinese Chemical Letters, ;2005, 16(5): 635-638. shu

Preparation of the Ag₂O₂-PbO₂ Modified Electrode and Its Application towards Escherichia coli Fast Counting in Water

Jing GU ^1, ,
Wen ZHANG ¹ ,
Yu Feng YANG ² ,
Lei ZHENG ¹ ,
Zi Rong WU ² ,
Li Tong JIN ¹

1.
Department of Chemistry, East China Normal University, Shanghai 200062;
2.
Department of Biology, East China Normal University, Shanghai 200062

Received Date: 26 April 2004

Fund Project: We are greateful to the National Narural Science Foundation of China (No. 20455017) and Science and Technology Committee of Shanghai Municipal (No. 0452nm084).

A novel nano crystalline Ag₂O₂-PbO₂film chemically modified electrode (CME) was prepared and the CME was characterized by X-ray diffractometer (XRD) and atomic force microscope (AFM). By chronoamperometry, the nano Ag₂O₂-PbO₂ CME was used as bioelectrochemical sensor to determine the population of Escherichia coli (E. coli) in water. Compared with conventional methods, it is found that the technique we used is fast and convenient in counting E.coli.
- Ag₂O₂-PbO₂,
- modified platinum electrode,
- Escherichia coli,
- fast counting
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