Environment-friendly determination of low concentration azobenzene beta-cyclodextrin-modified electrode.
- Author:
Ying-Ying LI
1
;
Zhen-Yan JIANG
;
Jia-Qi CHEN
;
Hu-Lin LI
;
Hai-Qian ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Azo Compounds; analysis; chemistry; Electrochemistry; Electrodes; Environmental Monitoring; instrumentation; methods; Gold; chemistry; Reproducibility of Results; Sensitivity and Specificity; Water Supply; analysis; standards; beta-Cyclodextrins; chemistry
- From: Biomedical and Environmental Sciences 2008;21(6):479-484
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo study environment-friendly determination of azobenzene in trace amounts using beta-cyclodextrin (beta-CD)-modified Au electrode.
METHODSbeta-CD-modified Au electrode was fabricated with a two-step approach, and then a gold electrode modified with beta-CD was used to detect azobenzene by employing Osteryoung square wave voltammetry.
RESULTSThe modified electrode could detect azobenzene, showing a good linearity between the electrochemical current and concentration.
CONCLUSIONAlthough the electrochemical current is related with concentration, the detection limit is around 1.0 x 10(-10) mol/L. This study may provide a new environment-friendly approach for monitoring water quality.
