Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by Chengxiao Zhang
Total Records ( 1 ) for Chengxiao Zhang
  Dongdong Zhang , Yage Peng , Honglan Qi , Qiang Gao and Chengxiao Zhang
  A novel multielectrode array modified with multiwall carbon nanotubes (MWCNTs) to simultaneous amperometric determination of dihydroxybenzene isomers was designed. The three oxidation peaks at the multielectrode array fabricated in 0.10 M KCl–0.20 M acetate buffer solution (pH 5.40) containing hydroquinone, catechol and resorcinol appeared at +0.192 V, +0.301 V and +0.683 V, corresponding to the oxidation of hydroquinone, catechol and resorcinol, respectively. A simple electrochemical method for simultaneous determination of dihydroxybenzene isomers was developed by multiple linear regression (MLR) method. Under the optimized conditions, the amperometric currents were linear over ranges from 1.0 x 10–6 M to 1.0 x 10–4 M for hydroquinone, from 1.0 x 10–6 M to 1.0 x 10–4 M for catechol and from 6.0 x 10–6 M to 1.0 x 10–4 M for resorcinol, with the detection limits of 3.0 x 10–7 M, 2.0 x 10–7 M and 6.0 x 10–7 M, respectively. The developed method has been applied to simultaneous determination of dihydroxybenzene isomers in artificial wastewater with a satisfactory recovery from 97% to 101%. This work demonstrates that the MWCNTs-modified multielectrode array incorporating multiple linear regression method is a promising strategy for simultaneous electrochemical determination of isomers of organic compounds.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility