Authors:
Abdullah Obaid King Abdulaziz University Department of Chemistry, Faculty of Science P.O. Box 9028 Jeddah (Saudi Arabia)

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Suliman Basahel King Abdulaziz University Department of Chemistry, Faculty of Science P.O. Box 9028 Jeddah (Saudi Arabia)

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El-Hussieny Diefallah King Abdulaziz University Department of Chemistry, Faculty of Science P.O. Box 9028 Jeddah (Saudi Arabia)

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Abstract  

60Co-gamma radiolysis of 3-iodotyrosine and 3,5-diiodotyrosine in aqueous-ethanol solutions has shown that the chemical effects are mainly determined by the interaction of radicals from the radiolysis of solvent and controlled by the composition of the solution. The influence of varying solvent composition and radiation dose on the amount of iodoamino acid converted and on the yields of the radiolysis products (I2, I, IO 3 and H2O2) formed in aerated solutions at room termperature were investigated. The formation of I2 is dependent upon the acidity of the solution and is mainly produced as an after-effect due to the interaction of H2O2 with I ions, both being radiolysis products. The variation of radiation-chemical yields with the solute and solvent composition, and the probable mechanisms for formation of the radiolysis products are discussed.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)