Cyclic voltammetric studies of the redox behavior of iron(III)-vitamin B6 complex at carbon paste electrode |
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Authors: | A A Shaikh M Begum A H Khan M Q Ehsan |
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Institution: | (1) University of Dhaka, Dhaka, 1000, Bangladesh |
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Abstract: | Electrochemical redox behavior of Fe-vit B6 complex is investigated in HEPES buffer in the pH range 5.1–13.1 using cyclic voltammetry. Well-defined anodic and cathodic
peaks are observed in the voltammograms at pH 13.1. At pH 8.0, only one cathodic peak and at pH 5.1, only one anodic peak
are found. At all the pH values, the peak potential separation is much higher than that of a reversible electrochemical reaction.
The peak current ratio (i
pa/i
pc) is less than unity and decreases with the scan rate.
Published in Russian in Elektrokhimiya, 2006, Vol. 42, No. 6, pp. 691–697.
The text was submitted by the authors in English. |
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Keywords: | cyclic voltammetry redox reaction iron(III)-vitamin B6 complex carbon paste electrode quasireversible |
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