Theory of the oxygen voltammetric electroreduction process in the presence of an antioxidant for estimation of antioxidant activity

Yakov I. Tur'yan; Pavel Gorenbein; Ron Kohen

doi:10.1016/j.jelechem.2004.05.008

Theory of the oxygen voltammetric electroreduction process in the presence of an antioxidant for estimation of antioxidant activity

Yakov I. Tur'yan, Pavel Gorenbein, Ron Kohen^*

^*Corresponding author for this work

School of Pharmacy

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The voltammetric method of antioxidant activity estimation proposed in recent studies by Korotkova et al. [J. Phys. Chem. 74 (2000) 1544; J. Electroanal. Chem. 518 (2002) 56; Anal. Bioanal. Chem. 375 (2003) 465] is based on the decrease of the electroreduction oxygen current in the presence of the antioxidant. The further development of the theory of this process has been carried out using the kinetic current theory for conditions of direct current voltammetry at a given potential. A mechanism for the decrease of the electroreduction oxygen current in the presence of an antioxidant has been proposed. Equations of the diffusion and kinetic currents for reversible, quasi-reversible and irreversible processes have been found. These equations made it possible to analyze parameters influencing the sensitivity of the method for estimation of the antioxidant activity and to indicate the means of its optimization.

Original language	American English
Pages (from-to)	183-188
Number of pages	6
Journal	Journal of Electroanalytical Chemistry
Volume	571
Issue number	2
DOIs	https://doi.org/10.1016/j.jelechem.2004.05.008
State	Published - 1 Oct 2004

Keywords

Antioxidant activity
Kinetic current theory
Oxygen electroreduction
Voltammetry

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10.1016/j.jelechem.2004.05.008

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title = "Theory of the oxygen voltammetric electroreduction process in the presence of an antioxidant for estimation of antioxidant activity",

abstract = "The voltammetric method of antioxidant activity estimation proposed in recent studies by Korotkova et al. [J. Phys. Chem. 74 (2000) 1544; J. Electroanal. Chem. 518 (2002) 56; Anal. Bioanal. Chem. 375 (2003) 465] is based on the decrease of the electroreduction oxygen current in the presence of the antioxidant. The further development of the theory of this process has been carried out using the kinetic current theory for conditions of direct current voltammetry at a given potential. A mechanism for the decrease of the electroreduction oxygen current in the presence of an antioxidant has been proposed. Equations of the diffusion and kinetic currents for reversible, quasi-reversible and irreversible processes have been found. These equations made it possible to analyze parameters influencing the sensitivity of the method for estimation of the antioxidant activity and to indicate the means of its optimization.",

keywords = "Antioxidant activity, Kinetic current theory, Oxygen electroreduction, Voltammetry",

author = "Tur'yan, {Yakov I.} and Pavel Gorenbein and Ron Kohen",

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doi = "10.1016/j.jelechem.2004.05.008",

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T1 - Theory of the oxygen voltammetric electroreduction process in the presence of an antioxidant for estimation of antioxidant activity

AU - Tur'yan, Yakov I.

AU - Gorenbein, Pavel

AU - Kohen, Ron

PY - 2004/10/1

Y1 - 2004/10/1

N2 - The voltammetric method of antioxidant activity estimation proposed in recent studies by Korotkova et al. [J. Phys. Chem. 74 (2000) 1544; J. Electroanal. Chem. 518 (2002) 56; Anal. Bioanal. Chem. 375 (2003) 465] is based on the decrease of the electroreduction oxygen current in the presence of the antioxidant. The further development of the theory of this process has been carried out using the kinetic current theory for conditions of direct current voltammetry at a given potential. A mechanism for the decrease of the electroreduction oxygen current in the presence of an antioxidant has been proposed. Equations of the diffusion and kinetic currents for reversible, quasi-reversible and irreversible processes have been found. These equations made it possible to analyze parameters influencing the sensitivity of the method for estimation of the antioxidant activity and to indicate the means of its optimization.

AB - The voltammetric method of antioxidant activity estimation proposed in recent studies by Korotkova et al. [J. Phys. Chem. 74 (2000) 1544; J. Electroanal. Chem. 518 (2002) 56; Anal. Bioanal. Chem. 375 (2003) 465] is based on the decrease of the electroreduction oxygen current in the presence of the antioxidant. The further development of the theory of this process has been carried out using the kinetic current theory for conditions of direct current voltammetry at a given potential. A mechanism for the decrease of the electroreduction oxygen current in the presence of an antioxidant has been proposed. Equations of the diffusion and kinetic currents for reversible, quasi-reversible and irreversible processes have been found. These equations made it possible to analyze parameters influencing the sensitivity of the method for estimation of the antioxidant activity and to indicate the means of its optimization.

KW - Antioxidant activity

KW - Kinetic current theory

KW - Oxygen electroreduction

KW - Voltammetry

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SN - 1572-6657

VL - 571

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EP - 188

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

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ER -

Theory of the oxygen voltammetric electroreduction process in the presence of an antioxidant for estimation of antioxidant activity

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