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Square wave voltammetry based on determination of copper (II) ions by polyluteolin- and polykaempferol-modified electrodes |
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| Authors: | Oztekin Yasemin Yazicigil Zafer Ramanaviciene Almira Ramanavicius Arunas |
| Institution: | a Selcuk University, Faculty of Science, Department of Chemistry, Konya, Turkey b Vilnius University, Faculty of Chemistry, Nano-Technas, Center of Nanotechnology and Materials Science, Vilnius, Lithuania c State Research Center of Physical Sciences and Technology, Institute of Semiconductor Physics, Vilnius, Lithuania |
| Abstract: | 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. |
| Keywords: | Electrochemical determination of Copper(II) Kaempferol Luteolin Square wave voltammetry Heavy metals |
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