Journal of Analytical Chemistry, ( ISI ), Volume (71), No (10), Year (2016-10) , Pages (1057-1062)

Title : ( Electrochemical determination of riboflavin using a synthesized ethyl[(methythio)carbonothioyl] glycinate monolayer modified gold electrode )

Authors: Fereshteh Karimian Azimi Saraf , Glamhossein Ronagi , manijeh mohadeszadeh ,

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Abstract

The surface of a gold disk electrode, for the first time, was modified with a self-assembled mono layer of a synthesized compound, ethyl [(methythio)carbonothioyl] glycinate (ECTG), for construction of an electrode sensitive to riboflavin (vitamin B2). The electrochemical properties of the monolayer assembled on the gold disk, were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. Under the optimized conditions, the voltammetric peak currents resulting from vitamin B2 (VB2) species were linear for VB2 concentrations in the range from 10–6 to 10–2 M. The effect of pH, type of buffer solution and scan rate on the response of the modified electrode was studied. The constructed electrochemical sensor responses very well to VB2 in the presence of most common vitamins. Finally, the performance of the Au–ECTG modified electrode was successfully tested for electrochemical detection of VB2 in a pharmaceutical sample.

Keywords

, riboflavin, modified electrode, self-assembled monolayer, voltammetry
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@article{paperid:1059084,
author = {Karimian Azimi Saraf, Fereshteh and Ronagi, Glamhossein and Mohadeszadeh, Manijeh},
title = {Electrochemical determination of riboflavin using a synthesized ethyl[(methythio)carbonothioyl] glycinate monolayer modified gold electrode},
journal = {Journal of Analytical Chemistry},
year = {2016},
volume = {71},
number = {10},
month = {October},
issn = {1061-9348},
pages = {1057--1062},
numpages = {5},
keywords = {riboflavin; modified electrode; self-assembled monolayer; voltammetry},
}

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%0 Journal Article
%T Electrochemical determination of riboflavin using a synthesized ethyl[(methythio)carbonothioyl] glycinate monolayer modified gold electrode
%A Karimian Azimi Saraf, Fereshteh
%A Ronagi, Glamhossein
%A Mohadeszadeh, Manijeh
%J Journal of Analytical Chemistry
%@ 1061-9348
%D 2016

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