Square wave voltammetry based on determination of copper (II) ions by polyluteolin- and polykaempferol-modified electrodes

被引:49
作者
Oztekin, Yasemin [1 ,2 ]
Yazicigil, Zafer [2 ]
Ramanaviciene, Almira [1 ]
Ramanavicius, Arunas [1 ,3 ]
机构
[1] Vilnius Univ, Fac Chem, Ctr Nanotechnol & Mat Sci, Vilnius, Lithuania
[2] Selcuk Univ, Fac Sci, Dept Chem, Konya, Turkey
[3] State Res Ctr Phys Sci & Technol, Inst Semicond Phys, Vilnius, Lithuania
关键词
Electrochemical determination of Copper(II); Kaempferol; Luteolin; Square wave voltammetry; Heavy metals; GLASSY-CARBON ELECTRODE; SELF-ASSEMBLED MONOLAYER; ELECTROCHEMICAL OXIDATION; ANTIOXIDANT ACTIVITY; QUERCETIN; FLAVONOIDS; COMPLEX; DNA; SURFACTANT; IRON;
D O I
10.1016/j.talanta.2011.05.005
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Applicability of square wave voltammetry for the determination of Cu(II) ions by PolyLut/GC and PolyKae/GC electrodes was evaluated in this study. For this luteolin and kaempferol were electrochemically polymerized on glassy carbon (GC) electrode surface in order to get polyluteolin and polykaempferol-modified glassy carbon electrodes (PolyLut/GC and PolyKae/GC, correspondingly). The formation of polyphenol layer on the GC electrode surface was evidenced by atomic force microscopy. Square wave voltammetry was found to be more sensitive in comparison with differential pulse voltammetry. It was determined that PolyLut/GC and PolyKae/GC electrodes offered great sensitivity towards Cu(II) ions with very low limit of detection, good reproducibility, sufficient stability and excellent selectivity of analytical signal. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:1020 / 1027
页数:8
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