COMPARISON OF OXIDIZING CAPACITY OF NON-THERMAL PLASMA AND IONIZING RADIATION USING EPR SPECTROMETRY

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Abstract

Oxidative processes during exposure of crystalline sucrose samples to non-thermal argon plasma were investigated for the first time. The aim of the work was to compare the oxidizing abilities of non-thermal plasma and gamma radiation when exposed to sucrose using EPR spectrometry. The EPR signal intensity was found to increase with increasing plasma treatment time, indicating the presence of oxidative processes and free radical formation. A decrease in the signal intensity was observed with the passage of time. On average, the signal intensity decreased by 9% at week 1, 13% at week 3, 15% at week 11 and 22% at week 22 relative to the untreated sample. Based on the data obtained, a comparative analysis was performed on the amount of free radicals formed in sucrose (carbon-centered) during treatment with non-thermal plasma and gamma radiation.

About the authors

I. M Medzhidov

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Email: immedzhidov@mail.ru
Obninsk, Russia

V. A Kharlamov

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Obninsk, Russia

S. A Gorbatov

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Obninsk, Russia

T. V Chizh

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Obninsk, Russia

P. N Tsygyintsev

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Obninsk, Russia

D. I Titova

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Obninsk, Russia

V. N Tikhonov

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Obninsk, Russia

I. A Ivanov

Russian Institute of Radiology and Agroecology of National Research Centre "Kurchatov Institute"

Obninsk, Russia

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