Application of TiO2 Nanoparticles Modified Carbon Paste Electrode for the Determination of Vitamin B2
- Авторы: Ebrahim Zarei 1, Jamali M.2, Bagheri J.2
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Учреждения:
- Department of Basic Sciences, Farhangian University
- Department of Chemistry, Payame Noor University
- Выпуск: Том 74, № 12 (2019)
- Страницы: 1213-1222
- Раздел: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183352
- DOI: https://doi.org/10.1134/S1061934819120049
- ID: 183352
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Аннотация
In the present work, a modified carbon paste electrode was fabricated by grinding the mixture of graphite powder and paraffin oil (as a binder) with a sufficient amount of TiO2 nanoparticles. The electrochemical behavior of vitamin B2 (riboflavin) was investigated on the surface of the electrode using cyclic voltammetry and differential pulse voltammetry (DPV). The results showed that the electrochemical response of riboflavin was improved considerably at the modified electrode comparing to the unmodified electrode. Effects of TiO2 percentage, pH value, pulse time, and pulse amplitude were optimized using DPV technique. Under the optimized conditions, a linear dynamic range of 2.4 × 10–6 to 2.4 × 10–4 M with the detection limit of 1.6 × 10–6 M for vitamin B2 was obtained. The effects of some common interferences were examined, and the method was successfully employed to the detection of riboflavin in pharmaceutical formulations.
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Об авторах
Ebrahim Zarei
Department of Basic Sciences, Farhangian University
Автор, ответственный за переписку.
Email: e.zarei@cfu.ac.ir
Иран, Tehran
Mohammad Jamali
Department of Chemistry, Payame Noor University
Email: e.zarei@cfu.ac.ir
Иран, Tehran
Jaber Bagheri
Department of Chemistry, Payame Noor University
Email: e.zarei@cfu.ac.ir
Иран, Tehran