VOLTAMMETRIC STUDIES OF PYRIDOXINE HYDROCHLORIDE OXIDATION ON ARRAYS OF SHARP STRUCTURES MODIFIED WITH PLATINUM
DOI:
https://doi.org/10.32782/naturaljournal.8.2024.18Keywords:
nanostructured surface, depolarizer, modified platinum, voltammetry, electrooxidationAbstract
Voltammetry studies of the process of electrooxidation of pyridoxine using the nanostructured surface of platinum as an electrode material were carried out. The oxidation process of pyridoxine hydrochloride was carried out in an acidic and alkaline environment against the background of sodium perchlorate. The intensity of the manufactured electrode was compared with the process on a smooth platinum electrode. In experimental studies, voltammetry with linear and cyclic potential sweep was used. Comparing the potentiodynamic electrooxidation curves of pyridoxine hydrochloride on a smooth and nanostructured platinum electrode, it can be noted that the value of current maximum potentials at the same depolarizer concentration for an electrode with a nanostructured surface has a lower positive value. The number of electrons participating in the electrode process was calculated according to the well-known Levic limiting current equation of 2.18. The course of the obtained curves and the increase in overvoltage is primarily due to a decrease in the adsorption capacity of pyridoxine hydrochloride with an increase in temperature, which is subject to the theory of adsorption processes. Based on the results of the analysis of the obtained voltammetry curves, the calculation of the rate constant and the diffusion coefficient of the depolarizer oxidation process on a nanostructured platinum electrode was calculated. The voltammetry method used with linear and cyclic potential sweep on nanostructured platinum surfaces is a good alternative for the analytical determination of B6 because it is simple, cheap and has a low detection limit, as well as having sufficient accuracy and sensitivity. The detection limit is ~ 5 ∙10-4 mol/dm3.
References
Мартинюк М.В., Шевченко О.П., Лут О.А., Пасічник В.В. Електрохімічне відновлення нікотинаміду на масивах гострійних структур нікелю з додатково осадженим бісмутом. Сучасні проблеми хімії : Зб. матеріалів ХХІ Міжнар. конф. студентів, аспірантів та молодих вчен., м. Київ, 17–19 трав. 2023 р. C. 139.
Шевченко О.П., Лут О.А., Шафорост Ю.А., Погребняк О.С. Вольтамперометричні дослідження електроокиснення пірокатехіну на платиновому наноструктурованому електроді. «Молекулярна інженерія та комп’ютерне моделювання для нано- і біотехнологій: від наноелектроніки до біополімерів» : Зб. тез міжнар. наук. інтернет-конф., м. Черкаси, 27–28 верес. 2023 р. Черкаси, 2023. С. 122.
Шевченко О.П., Лут О.А., Шафорост Ю.А., Шкунида Д. П. Електрохімічні дослідження процесу відновлення тіамін броміду на нікелевих гострійних структурах модифікованих нанорозмірними частинками бісмуту. Український журнал природничих наук. 2023. № 5. С. 80–89. https://doi.org/10.32782/naturaljournal.5.2023.9.
Шевченко О.П., Сосюк О.В. Дослідження процесу електрохімічного окиснення піридоксину гідрохлориду на платиновому модифікованому електроді. Шляхи розвитку науки в сучасних кризових умовах : Матеріали IV Міжнар. науково-практ. Інтернет-конф., м. Дніпро, 8–9 черв. 2023 р. С. 452.
Brunetti B., Desimoni E. Voltammetric determination of vitamin B6 in food samples and dietary supplements. Journal of Food Composition and Analysis. 2014. Vol. 33. P. 155–160. https://doi.org/10.1016/j.jfca.2013.12.008.
David I.G., Florea M.A., Cracea O.G., Popa D.E., Buleandra M., Iorgulescu E.E., David V., Badea I.A., Ciucu A.A. Voltammetric determination of B1 and B6 vitamins using a pencil graphite electrode. Chem. Pap., 2015. Vol. 69. P. 901–910. https://doi.org/10.1515/chempap-2015-0096.
Dokur E., Gorduk O., Sahin Y. Cost-effective and facile production of a phosphorus-doped graphite electrode for the electrochemical determination of pyridoxine. Electroanalysis, 2021. Vol. 33 (6). P. 1657–1667. https://doi.org/10.1002/elan.202100038.
Habibi B., Phezhhan H., Pournaghi-Azar M.H. Voltammetric determination of vitamin B6 (Pyridoxine) using multi wall carbon nanotube modified carbon-ceramic electrode. Journal of the Iranian Chemical Society, 2010. Vol. 7. Р. 103–112. https://doi.org/10.1007/BF03246189.
Kuzmanović D., Khan M., Mehmeti E., Nazir R., Amaizah N.R.R., Stanković D.M. Determination of pyridoxine (vitaminB6) nin pharmaceuticals and urine samples using unmodified boron-doped diamond electrode. Diamond and Related Materials, 2016. Vol. 64. P. 184–189. https://doi.org/10.1016/j.diamond.2016.02.018.
Mehdi Motaghi M., Beitollahi H., Tajik S., Hosseinzadeh R. Nanostructure Electrochemical Sensor for Voltammetric Determination of Vitamin C in the Presence of Vitamin B6: Application to Real Sample Analysis. International Journal of Electrochemical Science, 2016. P. 7849–7860. https://doi.org/10.20964/2016.09.60.
Mekonnen A., Saini R. C., Tadese A., Pal R. Square wave voltammetric determination of pyridoxine in pharmaceutical preparations using cobalt hexacyanoferrate modified carbon paste electrode. Journal of Chemical and Pharmaceutical Research, 2014. Vol. 6. P. 544–551.
Moustafa A., El-Kamel R.S., Abdelgawad S., Fekry A.M., Shehata M. Electrochemical determination of vitamin B6 (pyridoxine) by reformed carbon paste electrode with iron oxide nanoparticles. Ionics 28, 2022. P. 4471–4484. https://doi.org/10.1007/s11581-022-04673-6.
Razmi H., Jabbari M., Mohammad-Rezaei R. Electrochemically Reduced Graphene Oxide Modified Carbon Ceramic Electrode for the Determination of Pyridoxine. Analytical Chemistry Letters, 2014. 4 (2). P. 73–85. https://doi.org/10.1080/22297928.2014.925826.
Santander P., Nuñez-Vergara L.J., Sturm, J.C., Squella J.A. Voltammetric determination melatonin andpyridoxine (vitamin B6) in tablets. Bol. Soc. Chil. Quím, 2001. Vol. 46. P. 1840–1845. http://dx.doi.org/10.4067/S0366-16442001000200005.
Shevchenko O., Lut O., Aksimentyeva O. Нighly sensitive sensor for detection of vitamin B1 on the nanostructural surface of nickel. Sensor Electronics and Microsystem Technologies. 2011. T. 2 (8). № 1. P. 69–73.
Teixeira M.F., Segnini A., Moraes F.C., Marcolino-Júnior L.H., Fatibello-Filho O.,
Cavalheiro É.T. Determination of vitamin B6 (pyridoxine) in pharmaceutical preparations by cyclic voltammetry at a copper(II) hexacyanoferrate(III) modified carbon paste electrode. J. Braz. Chem. Soc. 2003. Vol. 14. P. 316–321. http://dx.doi.org/10.1590/S0103-50532003000200021.
Teixeira M.F.S, Marino G., Dockal E.R., Cavalheiro É.T.G. Voltammetric determination of pyridoxine (Vitamin B6) at a carbon paste electrode modified with vanadyl(IV)–Salen complex. Analytica Chimica Acta. 2004. 508, 1. P. 79–85. https://doi.org/10.1016/j.aca.2003.11.046.
Wanyun Q., Kangbing W., Shengshui H. Voltammetric determination of pyridoxine (Vitamin B6) by use of a chemically-modified glassy carbon electrode. Journal of pharmaceutical and biomedical analysis. 2004. Vol. 36. P. 631–635. https://doi.org/10.1016/j.jpba.2004.07.016.
