Measurement of the reactivity of a novel spin-trapping agent, CYPMPO, by pulse radiolysis study

Midorikawa, Masamichi*; Oka, Toshitaka ; Yamashita, Shinichi; Muroya, Yusa*; Lin, M.; Kamibayashi, Masato*; Anzai, Kazunori*; Kudo, Hisaaki*; Katsumura, Yosuke

5-(2,2-dimethyl-1,3-propoxy cyclophosphoryl)-5-methyl-1pyrroline N-oxide (CYPMPO) is a recently developed spin-trapping agent, which is expected to distinguish O $_{2}^{- cdot}$ from $^{cdot}$ OH. We have determined its reactivity with water decomposed radicals, especially with $^{cdot}$ OH and with e $^{-}_{rm{aq}}$ by pulse radiolysis, and compared results with commonly-used spin trapping agent, 5,5-dimethyl-1-pyrroline N-oxide (DMPO). Furthermore, the reactions with oxidative radicals such as $^{cdot}$ COO $^{-}$ , NO $_{2}^{cdot}$ and Br $_{2}^{- cdot}$ have also been investigated.

Language	:	Japanese
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Meeting title	:	第52回放射線化学討論会
Held date	:	2009/09
Location (city)	:	福井
Location (country)	:	日本
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Keywords	:	no keyword
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Cooperating Institute	:	千葉大学; 東京大学; 京都薬科大学; 放射線医学総合研究所

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Registration No. : BB20092093
JAEA Abstracts No. :
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