Determination of total phosphorus in water environment by three-dimensional double coils microelectrode chip

Author

Qiannan Xue ; Chao Bian ; Jianhua Tong ; Jizhou Sun ; Hong Zhang ; Shanhong Xia

Author_Institution

State Key Lab. of Transducer Technol., Inst. of Electron., Beijing, China

fYear

2012

fDate

28-31 Oct. 2012

Firstpage

1

Lastpage

4

Abstract

A microelectrode chip was developed for total phosphorus determination. The chip is based on a pair of electrodes with 23 μm width, 17 μm spacing, and 20μm heights, formed a three-dimensional double coils microstructure, which can increase the electric field strength between the electrodes, enhance generation - collection effect, and increase the current density. Enzyme and gold nanoparticles were modified on the working electrode surface by the method of SAMs. The three-dimensional double coils microelectrode chip achieved a high response signal and got a high sensitivity and a low detection limit.

Keywords

current density; microelectrodes; nanoparticles; water meters; collection effect; current density; electric field strength; enhance generation; enzyme; gold nanoparticles; three-dimensional double coils microelectrode chip; total phosphorus determination; water environment; Coils; Gold; Microelectrodes; Nanoparticles; Sensitivity; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2012 IEEE

Conference_Location

Taipei

ISSN

1930-0395

Print_ISBN

978-1-4577-1766-6

Electronic_ISBN

1930-0395

Type

conf

DOI

10.1109/ICSENS.2012.6411252

Filename

6411252