Potentiometry for the determination of oxidant activity / Brainina Kh. Z.,Zaharov A. S.,Vidrevich M. B. // ANALYTICAL METHODS. - 2016. - V. 8, l. 28. - P. 5667-5675.

ISSN/EISSN:

1759-9660 / 1759-9679

Type:

Article

Abstract:

This paper aims to describe a new approach to using potentiometry for determining oxidants in liquids and ozonized and chlorinated water, in particular. The source of information is the electrode potential shift of the mediator system observed when an analyzed sample, containing oxidants, is inserted into an electrochemical cell. Criteria for the selection of the mediator system for oxidant determination are proposed. Potassium ferri/ferrocyanides serve as the mediator system in the proposed method. K-3{[}Fe(CN)(6)] is chosen as the model oxidant. Special attention is focused on the role of the state of an indicator electrode surface and ways of its regeneration in generating an analytical signal. The information is essential for obtaining correct results in different areas of electrochemical analysis. As a result, a simple, fast, sensitive, and reliable method that does not require the use of reference solution is proposed, which ensures its advantages over other methods. The accuracy and reliability of the data obtained are confirmed by the analysis results received by using the standard method.

Author keywords:

TOTAL ANTIOXIDANT CAPACITY; OXIDATIVE STRESS; RADICALS; PROSPECTS; ELECTRODE; PEROXIDE; OZONE; BLOOD

DOI:

10.1039/c6ay01106c

Web of Science ID:

ISI:000379896600015

Соавторы в МНС:

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Другие поля

Поле	Значение
Publisher	ROYAL SOC CHEMISTRY
Address	THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Language	English
EISSN	1759-9679
Keywords-Plus	TOTAL ANTIOXIDANT CAPACITY; OXIDATIVE STRESS; RADICALS; PROSPECTS; ELECTRODE; PEROXIDE; OZONE; BLOOD
Research-Areas	Chemistry; Food Science \& Technology; Spectroscopy
Web-of-Science-Categories	Chemistry, Analytical; Food Science \& Technology; Spectroscopy
Author-Email	baz@usue.ru
Funding-Acknowledgement	Ministry of Education and Science of the Russian Federation {[}4.1458.2014/K]
Funding-Text	The research for this paper was financially supported by the Ministry of Education and Science of the Russian Federation, Project No. 4.1458.2014/K.
Number-of-Cited-References	37
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	9
Journal-ISO	Anal. Methods
Doc-Delivery-Number	DR4TU