The effect of gamma radiation of amino acid derivatives in the solid state: an EPR study |
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Authors: | I Yeşim Dicle |
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Institution: | Faculty of Education, Dicle University, D.Bak?r, Turkey |
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Abstract: | The spectroscopic features of free radicals produced in gamma irradiation of the N-methyl-dl – alanine, N,N – dimethyl glycine hydrochloride and d – (+) – galactosamine hydrochloride were investigated at room temperature at the dose 15?kGy using EPR technique. The paramagnetic species observed in these compounds were identified as CH3?HCOOH, ?HOH(CHOH)3NH2(CH)2O, and (CH3)2N?HCOOH.HCl, respectively. A comparison with a new paramagnetic species recently observed and characterized in irradiated amino acids indicates that the new radical presented here has a similar structure. In this paper, we have also studied the stability of these compounds at room temperature after irradiation. |
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Keywords: | EPR free radicals amino acid derivatives gamma irradiation |
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