title: Environment-friendly determination of low concentration azobenzene beta-cyclodextrin-modified electrode.
abstract: 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.
authors.affiliation: College Materials Science & Technology, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, Jiangsu, China.
authors.forename: Ying-Ying
authors.initials: YY
authors.lastname: Li
authors.forename: Zhen-Yan
authors.initials: ZY
authors.lastname: Jiang
authors.forename: Jia-Qi
authors.initials: JQ
authors.lastname: Chen
authors.forename: Hu-Lin
authors.initials: HL
authors.lastname: Li
authors.forename: Hai-Qian
authors.initials: HQ
authors.lastname: Zhang
mesh_terms: 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*
chemical_list: D001391:Azo Compounds; D047392:beta-Cyclodextrins; D006046:Gold; C009850:azobenzene; C031215:betadex