β-Cyclodextrin incorporated carbon nanotube-modified electrode as an electrochemical sensor for rutin
- Resource Type
- Article
- Authors
- He, Jing-Lin; Yang, Yu; Yang, Xin; Liu, Yan-Li; Liu, Zhi-Hang; Shen, Guo-Li; Yu, Ru-Qin
- Source
- Sensors & Actuators B: Chemical. Mar2006, Vol. 114 Issue 1, p94-100. 7p.
- Subject
- *CYCLODEXTRINS
*RUTIN
*NANOTUBES
*ELECTROCHEMICAL sensors
- Language
- ISSN
- 0925-4005
Abstract: An electrochemical sensor modified with multi-walled carbon nanotubes/β-cyclodextrin (MWNTs/β-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/β-CD film for rutin was based on the inclusion interaction of β-CD for rutin. The MWNTs/β-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 4.0×10−7 to 1.0×10−3 molL−1 with a detection limit of 2.0×10−7 molL−1. This electrochemical sensor showed excellent sensitivity, selectivity, stability and recovery for the determination of rutin in urine samples. [Copyright &y& Elsevier]