Portable Device for Potentiometric Determination of Antioxidant Capacity
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Portable Device for Potentiometric Determination of Antioxidant Capacity
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| Автор |
Ivanova, A. V.
Markina, M. G. |
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| Тематика |
ANTIOXIDANT CAPACITY
MICROCELL PORTABLE DEVICE POTENTIOMETRY SCREEN-PRINTED ELECTRODE CHEMICAL REACTIONS ELECTROCHEMICAL ELECTRODES FRUIT JUICES POTENTIOMETERS (ELECTRIC MEASURING INSTRUMENTS) ANTIOXIDANT CAPACITY ELECTROCHEMICAL MICRO-CELL HALF CELLS IMMOBILIZED REAGENTS MICRO CELL PORTABLE DEVICE POTENTIAL DIFFERENCE POTENTIOMETRICS POTENTIOMETRY SCREEN PRINTED ELECTRODES ANTIOXIDANTS ANTIOXIDANT PROCEDURES VOLTAMMETRY ANTIOXIDANTS ELECTRODES POTENTIOMETRY |
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| Описание |
For the first time, a prototype of a portable device for the potentiometric determination of antioxidant capacity based on a new measurement principle is proposed. A feature of the approach is the use of an electrochemical microcell with separated spaces and two identical electrodes with immobilized reagents. An antioxidant solution is introduced into one half-cell, and the antioxidants interact with the reagents. The other half-cell contains only reagents. The potential difference between the electrodes is due to the change in the ratio of the oxidized and reduced form of the reagents, which occurs as a result of the reaction with the antioxidants in one of the half-cells and is related to their concentration. The range of linearity of the microcell with immobilized reagents is 40–4000 μM-eq, and the limit of detection is 20 μM-eq. The device was successfully tested in the analysis of standard antioxidant solutions. The recoveries were (92–113)%, and the relative standard deviation did not exceed 15%. A good correlation was found between the data obtained by the approach and the potentiometric method in a macrocell for fruit juice analysis. Pearson’s coefficient for the obtained experimental data was 0.9955. The proposed portable device is promising and can be used in field conditions. © 2023 by the authors.
Russian Science Foundation, RSF: 20-13-00142 This research was funded by a grant from the Russian Science Foundation No. 20-13-00142, https://rscf.ru/project/20-13-00142/ (accessed on 6 June 2023). |
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| Дата |
2024-04-05T16:33:31Z
2024-04-05T16:33:31Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Ivanova, A & Markina, M 2023, 'Portable Device for Potentiometric Determination of Antioxidant Capacity', Sensors, Том. 23, № 18, 7845. https://doi.org/10.3390/s23187845
Ivanova, A., & Markina, M. (2023). Portable Device for Potentiometric Determination of Antioxidant Capacity. Sensors, 23(18), [7845]. https://doi.org/10.3390/s23187845 1424-8220 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85172739825&doi=10.3390%2fs23187845&partnerID=40&md5=4bea9c60a2ecf386510a70672df24b90 https://www.mdpi.com/1424-8220/23/18/7845/pdf?version=1694586709 http://elar.urfu.ru/handle/10995/130819 10.3390/s23187845 85172739825 001075240800001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//20-13-00142
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Multidisciplinary Digital Publishing Institute (MDPI)
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| Источник |
Sensors
Sensors |
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