Electrochemical determination of riboflavin using a synthesized ethyl[(methythio)carbonothioyl] glycinate monolayer modified gold electrode
- Авторы: Karimian F.1, Rounaghi G.1, Mohadeszadeh M.1
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Учреждения:
- Department of Chemistry, Faculty of Sciences
- Выпуск: Том 71, № 10 (2016)
- Страницы: 1057-1062
- Раздел: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182126
- DOI: https://doi.org/10.1134/S1061934816080062
- ID: 182126
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Аннотация
The surface of a gold disk electrode, for the first time, was modified with a self-assembled monolayer 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.
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Об авторах
F. Karimian
Department of Chemistry, Faculty of Sciences
Email: ghrounaghi@yahoo.com
Иран, Mashhad
G. Rounaghi
Department of Chemistry, Faculty of Sciences
Автор, ответственный за переписку.
Email: ghrounaghi@yahoo.com
Иран, Mashhad
M. Mohadeszadeh
Department of Chemistry, Faculty of Sciences
Email: ghrounaghi@yahoo.com
Иран, Mashhad
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