A novel biosensor for liquid phase determination of glutathione and amoxicillin in biological and pharmaceutical samples using a ZnO/CNTs nanocomposite/catechol derivative modified electrode

被引：109
作者：
Karimi-Maleh, Hassan [1 ]
Tahernejad-Javazmi, Fahimeh [1 ]
Gupta, Vinod Kumar [2 ]
Ahmar, Hamid [3 ]
Asadi, Malek Hossein [4 ]
机构：
[1] Grad Univ Adv Technol, Dept Chem, Kerman, Iran
[2] Indian Inst Technol Roorkee, Dept Chem, Roorkee 247667, Uttar Pradesh, India
[3] Shahid Beheshti Univ, GC, Fac Sci, Dept Chem, Tehran, Iran
[4] Grad Univ Adv Technol, Inst Environm Sci, Dept Biotechnol, Kerman, Iran
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2014年 / 196卷
关键词：
Glutathione; Amoxicillin; Modified electrode; Voltammetry; CARBON-PASTE ELECTRODE; NICOTINAMIDE ADENINE-DINUCLEOTIDE; VOLTAMMETRIC DETERMINATION; FERROCENEDICARBOXYLIC ACID; SENSOR; NANOTUBES; MEDIATOR; ACETAMINOPHEN; MORPHINE;
D O I：
10.1016/j.molliq.2014.03.049
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In the present study, the use of a carbon paste electrode modified by 8,9-dihydroxy-7-methyl-12H-benzothiazolo [2,3-b]quinazolin-12-one (DMBQ) and ZnO/CNTs nanocomposite (DMBQ/ZnO/CNTs/CPE) prepared by a simple and rapid method was described. The modified electrode showed an excellent character for electrocatalytic oxidization of glutathione (GSH) and amoxicillin (AMX). Their square wave voltammetric peak current increased linearly with their concentration at the ranges of 0.002-720 and 1.0-950 mu M, respectively with the detection limits of 0.0008 and 0.5 mu M, respectively. The modified electrode was successfully used for the determination of the analytes in real samples with satisfactory results. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：258 / 263
页数：6
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