Amperometric Detection Under Batch-Injection Analysis Conditions of Caffeine on an Electrode Modified by Mixed-Valence Iridium and Ruthenium Oxides
- Авторы: Shaidarova L.1, Chelnokova I.1, Degteva M.1, Makhmutova G.1, Leksina Y.1, Gedmina A.1, Budnikov G.1
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Учреждения:
- A. M. Butlerov Chemical Institute, Kazan Federal University
- Выпуск: Том 49, № 10 (2016)
- Страницы: 711-714
- Раздел: Structure of Chemical Compounds, Methods of Analysis and Process Control
- URL: https://journals.rcsi.science/0091-150X/article/view/244279
- DOI: https://doi.org/10.1007/s11094-016-1358-5
- ID: 244279
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Аннотация
Mixed-valence Ir–Ru oxides (IrOx—RuOx) electrodeposited on a glassy-carbon electrode surface were found to exhibit catalytic activity for caffeine oxidation. An amperometric method for caffeine detection at this modified electrode under batch-injection analysis conditions was developed. The analytical signal was linearly dependent on the caffeine concentration in the range 5 × 10−8 – 5 × 10−3 M. The developed method was tested for caffeine determination in tablets, solutions for injection of caffeine—sodium benzoate, and coffetamin tablets.
Об авторах
L. Shaidarova
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, Ul. Kremlevskaya, 18, Kazan, Tatarstan, 420008
I. Chelnokova
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, Ul. Kremlevskaya, 18, Kazan, Tatarstan, 420008
M. Degteva
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, Ul. Kremlevskaya, 18, Kazan, Tatarstan, 420008
G. Makhmutova
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, Ul. Kremlevskaya, 18, Kazan, Tatarstan, 420008
Yu. Leksina
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, Ul. Kremlevskaya, 18, Kazan, Tatarstan, 420008
A. Gedmina
A. M. Butlerov Chemical Institute, Kazan Federal University
Автор, ответственный за переписку.
Email: LarisaShaidarova@mail.ru
Россия, Ul. Kremlevskaya, 18, Kazan, Tatarstan, 420008
G. Budnikov
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, Ul. Kremlevskaya, 18, Kazan, Tatarstan, 420008