Objective To study environment-friendly determination of azobenzene in trace amounts using β-cyclodextrin （β-CD）-modified Au electrode. Methods β-CD-modified Au electrode was fabricated with a two-step approach, ...Objective To study environment-friendly determination of azobenzene in trace amounts using β-cyclodextrin （β-CD）-modified Au electrode. Methods β-CD-modified Au electrode was fabricated with a two-step approach, and then a gold electrode modified with β-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 ×10^-10 mol/L. This study may provide a new environment-friendly approach for monitoring water quality.展开更多
基金supported by the National Natural Science Foundation of China (Project No. 60471005) Program for Changjiang Scholars and Innovative Research Team in University.
文摘Objective To study environment-friendly determination of azobenzene in trace amounts using β-cyclodextrin （β-CD）-modified Au electrode. Methods β-CD-modified Au electrode was fabricated with a two-step approach, and then a gold electrode modified with β-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 ×10^-10 mol/L. This study may provide a new environment-friendly approach for monitoring water quality.
