ESR INVESTIGATION OF GAMMA-IRRADIATED ASPIRIN

Authors
COZAR O CHIS V DAVID L DAMIAN G BARBUR I
Citation
O. Cozar et al., ESR INVESTIGATION OF GAMMA-IRRADIATED ASPIRIN, Journal of radioanalytical and nuclear chemistry, 220(2), 1997, pp. 241-244
Citations number
21
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
220
Issue
2
Year of publication
1997
Pages
241 - 244
Database
ISI
SICI code
0236-5731(1997)220:2<241:EIOGA>2.0.ZU;2-X
Abstract
Electron spin resonance spectroscopy was used to investigate the radia tion damage in a powder of 2-acetoxybenzoic acid (Aspirin). Three type s of radicals occur by gamma-irradiation of Aspirin at room temperatur e. Two of them are the result of hydrogen abstraction while the third is produced by hydrogen addition at one of the carbon atoms of the rin g. The relative yielding of the free radicals as a function of absorbe d dose in the range of 2.4 kGy to 160 kGy is also discussed.