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Вольтамперометрическое определение гуанина на электродах, модифицированных пленками гексацианокобальтата или гексацианорутената рутения

Вольтамперометрическое определение гуанина на электродах, модифицированных пленками гексацианокобальтата или гексацианорутената рутения

Abstract

The inorganic films of ruthenium(III) hexacyanocobaltate(III) and ruthenium(III) hexacyanoruthenate(II) electrodeposited on the surface of glassy carbon electrodes show electrocatalytic activity during guanine oxidation. In comparison with an unmodified electrode, the decrease in the oxidation potential by 210 mV and the multiple increase in the current of the organic compound oxidation take place. The conditions for the production of the polymeric inorganic film on the glassy carbon electrode and for the registration of the maximum catalytic current on this electrode are defined. The linear dependence of the electrocatalytic response of the modified electrode on the guanine concentration is observed in the range from 1·10 –6 to 1·10 –3 mol× l –1.

Неорганическая пленка из гексацианокобальтата(III) и гексацианорутената(II) рутения(III) на поверхности стеклоуглерода проявляет электрокаталитическую активность при окислении гуанина. По сравнению с немодифицированным электродом фиксируется уменьшение потенциала окисления на 210 мВ и многократное увеличение тока окисления органического соединения. Найдены условия получения полимерной неорганической пленки на поверхности стеклоуглерода и регистрации максимального каталитического тока на этом электроде. Линейная зависимость величины тока от концентрации гуанина наблюдается в интервале от 1·10 –6 до 1·10 –3 моль/л.

Keywords

ХИМИЧЕСКИ МОДИФИЦИРОВАННЫЕ ЭЛЕКТРОДЫ, ГЕКСАЦИАНОМЕТАЛЛАТЫ, ВОЛЬТАМПЕРОМЕТРИЧЕСКОЕ ОПРЕДЕЛЕНИЕ ГУАНИНА

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold