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β-Cyclodextrin incorporated carbon nanotube-modified electrode as an electrochemical sensor for rutin

被引：119
作者：
He, JL
Yang, Y
Yang, X
Liu, YL
Liu, ZH
Shen, GL
Yu, RQ [1 ]
机构：
[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Peoples R China
[2] Beijing Inst Pharmacol & Toxicol, Beijing 100850, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 114卷 / 01期
基金：
中国国家自然科学基金;
关键词：
rutin; beta-cyclodextrin; multi-walled carbon nanotubes; cyclic voltammetry;
D O I：
10.1016/j.snb.2005.04.009
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An electrochemical sensor modified with multi-walled carbon nanotubes/beta-cyclodextrin (MWNTs/beta-CD) film was fabricated for the determination of rutin. The electrochemical behavior of rutin at the chemically modified electrode was investigated by cyclic voltammetry (CV). The response mechanism of MWNTs/beta-CD film for rutin was based on the inclusion interaction of P-CD for rutin. The MWNTs/beta-CD film showed preferably analytical performance characteristics in electrocatalytic oxidation and reduction for rutin compared with the MWNTs film and bare glassy carbon electrode (GCE). A linear calibration plot was obtained covering the range from 4.0 x 10(-7) to 1.0 x 10(-3) mol L-1 with a detection limit of 2.0 x 10(-7) mol L-1. This electrochemical sensor showed excellent sensitivity, selectivity, stability and recovery for the determination of rutin in urine samples. (c) 2005 Published by Elsevier B.V.
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收藏
页码：94 / 100
页数：7
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