Environment-friendly determination of low concentration azobenzene beta-cyclodextrin-modified electrode
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Published on: March 1, 2018
Ying-Ying Li1, Zhen-Yan Jiang, Jia-Qi Chen
1College Materials Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, Jiangsu, China.
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.
Conclusion:
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.
