Multiwalled Carbon Nanotubes β-Cyclodextrin Modified Electrode for Electrochemical Determination of Bisphenol S in Water Samples

被引：19
|
作者：
Filik, H. [1 ]
Avan, A. A. [1 ]
Yetimoglu, E. K. [2 ]
机构：
[1] Istanbul Univ Cerrahpasa, Fac Engn, Dept Chem, TR-34320 Istanbul, Turkey
[2] Marmara Univ, Fac Arts & Sci, Dept Chem, TR-34722 Istanbul, Turkey
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2019年 / 55卷 / 02期
关键词：
bisphenol S; voltammetry; cyclodextrin; carbon nanotubes; water analysis; INCLUSION COMPLEX; POLAROGRAPHY;
D O I：
10.1134/S1023193519010038
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A voltammetric sensor for the determination of bisphenol S (BPS) in aqueous samples was fabricated by immobilization of beta-cyclodextrin/multiwalled carbon nanotubes onto the surface of glassy carbon electrode (beta-CD/MWCNTs/GCE). The quantitative determination of BPS was investigated by square wave voltammetry (SWV) and the important analytical characteristics of the beta-CD/MWCNTs/GCE was examined for the detection of bisphenol S. In addition, the predominant experimental factors affecting the voltammetric efficiency were studied. The voltammetric behavior of the beta-CD/MWCNTs electrode in the presence of the BPS was studied, and an irreversible oxidation peak current was obtained at about 0.9 V versus Ag/AgCl. The fabricated electrode exhibited a sufficient linear range from 0.5 to 60 mu M BPS and the limit of detection of the sensor was found to be 0.05 mu M (S/N = 3). Additionally, the applicability of the detailed electrochemical sensor was investigated to determine BPS in tap water and drinking water samples.
引用
收藏
页码：70 / 77
页数：8
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