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Environment-friendly determination of low concentration azobenzene beta-cyclodextrin-modified electrode / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences ; (12): 479-484, 2008.
Article in English | WPRIM | ID: wpr-296020
ABSTRACT
<p><b>OBJECTIVE</b>To study environment-friendly determination of azobenzene in trace amounts using beta-cyclodextrin (beta-CD)-modified Au electrode.</p><p><b>METHODS</b>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.</p><p><b>RESULTS</b>The modified electrode could detect azobenzene, showing a good linearity between the electrochemical current and concentration.</p><p><b>CONCLUSION</b>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.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Reference Standards / Azo Compounds / Water Supply / Chemistry / Environmental Monitoring / Reproducibility of Results / Sensitivity and Specificity / Beta-Cyclodextrins / Electrochemistry / Electrodes Type of study: Diagnostic study Language: English Journal: Biomedical and Environmental Sciences Year: 2008 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Reference Standards / Azo Compounds / Water Supply / Chemistry / Environmental Monitoring / Reproducibility of Results / Sensitivity and Specificity / Beta-Cyclodextrins / Electrochemistry / Electrodes Type of study: Diagnostic study Language: English Journal: Biomedical and Environmental Sciences Year: 2008 Type: Article