Environment-friendly determination of low concentration azobenzene beta-cyclodextrin-modified electrode.
OBJECTIVE
To study environment-friendly determination of azobenzene in trace amounts using beta-cyclodextrin (beta-CD)-modified Au electrode.


METHODS
beta-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.


RESULTS
The modified electrode could detect azobenzene, showing a good linearity between the electrochemical current and concentration.


CONCLUSIONS
Although 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.
Li
Ying-Ying
YY
College Materials Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, Jiangsu, China.
Jiang
Zhen-Yan
ZY
Chen
Jia-Qi
JQ
Li
Hu-Lin
HL
Zhang
Hai-Qian
HQ
D001391:Azo Compounds / Q000032:analysis* / Q000737:chemistry; D004563:Electrochemistry; D004566:Electrodes; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D006046:Gold / Q000737:chemistry; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014881:Water Supply / Q000032:analysis / Q000592:standards; D047392:beta-Cyclodextrins / Q000737:chemistry*
D001391:Azo Compounds; D047392:beta-Cyclodextrins; D006046:Gold; C009850:azobenzene; C031215:betadex