A chronoamperometric method for determining total antioxidant activity / Brainina Kh. Z.,Varzakova D. P.,Gerasimova E. L. // JOURNAL OF ANALYTICAL CHEMISTRY. - 2012. - V. 67, l. 4. - P. 364-369.

ISSN/EISSN:

1061-9348 / нет данных

Type:

Article

Abstract:

A novel version of a chronoamperometric method of antioxidant determination is described. It is based on the use of the oxidation current of ferrocyanide formed in the reaction of antioxidants to be determined with potassium ferricyanide as an analytical signal. So the total concentration of all antioxidants present in the analyzed solution, i.e., total antioxidant capacity, is measured. The results of blood plasma analysis by the newly presented and certified potentiometry method are in good agreement with each other, R (2) = 0.9980. The detection limit makes 2 x 10(-6) M for uric and ascorbic acids and 5 x 10(-6) M for cysteine and glutathione.

Author keywords:

antioxidant activity; potentiometry; chronoamperometry; mediator system ASCORBIC-ACID; CAPACITY; ELECTRODES; DOPAMINE; ASSAY

DOI:

10.1134/S1061934812020050

Web of Science ID:

ISI:000302313400010

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	ASCORBIC-ACID; CAPACITY; ELECTRODES; DOPAMINE; ASSAY
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Analytical
Funding-Acknowledgement	Russian Foundation for Basic Research {[}07-03-96071-p\_ural\_a]
Funding-Text	This WORK was supported by Russian Foundation for Basic Research, project no. 07-03-96071-p\_ural\_a. The authors wish to thank Dr. E.M. Murzakaeva and Dr. S.G. Tolszhina for their assistance in the study of the oxidation of organic substances.
Number-of-Cited-References	22
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	24
Journal-ISO	J. Anal. Chem.
Doc-Delivery-Number	919HI