Selective Voltammetric Determination of Sulfur-Containing Amino Acids in Drugs and Vitamin Complexes on an Electrode Modified by a Ruthenium-Hexachloroplatinate Film
- Авторы: Shaidarova L.1, Gedmina A.1, Zhaldak É.1, Chelnokova I.1, Demina V.1, Budnikov G.1
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Учреждения:
- A. M. Butlerov Chemical Institute, Kazan Federal University
- Выпуск: Том 52, № 2 (2018)
- Страницы: 145-150
- Раздел: Structure of Chemical Compounds, Methods of Analysis and Process Control
- URL: https://journals.rcsi.science/0091-150X/article/view/245035
- DOI: https://doi.org/10.1007/s11094-018-1780-y
- ID: 245035
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Аннотация
An inorganic film of ruthenium hexachloroplatinate (RuPtCl6) deposited on the surface of a glassy-carbon electrode exhibited catalytic activity for oxidation of S-containing amino acids. Catalytic electrochemical oxidation of cysteine, cystine, and methionine occurred at various potentials. The optimum conditions for producing a RuPtCl6 film that gave the greatest catalytic effect were found. A method for selective voltammetric determination of cysteine, methionine, and cystine at an RuPtCl6-film electrode was developed. The lower limit of quantitation of cysteine and cystine was 5 × 10–6 M; of methionine, 5 × 10–7 M. The proposed voltammetric method was used to determine cysteine, cystine, and methionine in drugs and vitamin complexes.
Об авторах
L. Shaidarova
A. M. Butlerov Chemical Institute, Kazan Federal University
Автор, ответственный за переписку.
Email: LarisaShaidarova@mail.ru
Россия, 18 Kremlevskaya St., Kazan, Tatarstan, 420008
A. Gedmina
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, 18 Kremlevskaya St., Kazan, Tatarstan, 420008
É. Zhaldak
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, 18 Kremlevskaya St., Kazan, Tatarstan, 420008
I. Chelnokova
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, 18 Kremlevskaya St., Kazan, Tatarstan, 420008
V. Demina
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, 18 Kremlevskaya St., Kazan, Tatarstan, 420008
G. Budnikov
A. M. Butlerov Chemical Institute, Kazan Federal University
Email: LarisaShaidarova@mail.ru
Россия, 18 Kremlevskaya St., Kazan, Tatarstan, 420008