Preparation of Salbutamol Electrochemical Sensor Modified by Polymerized Thionine/multi-wall Carbon Nanotubes

doi:10.7506/spkx1002-6630-200919007

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (19 ): 40-43.doi: 10.7506/spkx1002-6630-200919007

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Preparation of Salbutamol Electrochemical Sensor Modified by Polymerized Thionine/multi-wall Carbon Nanotubes

WU Yun1，CHEN Chang-yun2，ZHAO Bo3，WANG Zheng-wu3,*

(1. Department of Basic Science, China Pharmaceutical University, Nanjing 211198, China；
2. Department of Chemistry, Nanjing Xiaozhuang University, Nanjing 210017, China；3. Department of Food Science and
Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China)

Received:2009-05-22 Online:2009-10-01 Published:2010-12-29
Contact: WANG Zheng-wu3,* E-mail:zhengwuwang@sjtu.edu.cn

Abstract

Abstract:

Electrochemical behavior of salbutamol on gold electrode modified by polymerized thionine/multi-wall carbon nanotubes was investigated by cyclic voltammetry method. Good voltammetric response to salbutamol was occurred on this modified electrode, such as peak current enhancement and 15 mV of negative shift in anodic peak potential. Under optimal measurement conditions, a good linear relationship between peak current (Ipa) and salbutamol concentration (C) was showed in the range from 4.2×10-7 to 8.3 ×10-6 mol/L, and a detection sensitivity could reach 2.3 ×10-7 mol/L (S/N = 3).

Key words: salbutamol, thionine, multi-wall carbon nanotubes, electrochemical sensor

CLC Number:

O657

WU Yun1，CHEN Chang-yun2，ZHAO Bo3，WANG Zheng-wu3,*. Preparation of Salbutamol Electrochemical Sensor Modified by Polymerized Thionine/multi-wall Carbon Nanotubes[J]. FOOD SCIENCE, 2009, 30(19 ): 40-43 https://doi.org/10.7506/spkx1002-6630-200919007

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Preparation of Salbutamol Electrochemical Sensor Modified by Polymerized Thionine/multi-wall Carbon Nanotubes

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