Studies on spin-trapped radicals in .gamma.-irradiated aqueous solutions of DL-methionine by high performance liquid chromatography and ESR spectroscopy
Studies on spin-trapped radicals in .gamma.-irradiated aqueous solutions of DL-methionine by high performance liquid chromatography and ESR spectroscopy
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高效液相色谱和ESR光谱法研究γ辐照的DL-蛋氨酸水溶液中自旋捕获自由基
DOI：
10.1021/j100482a020
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
K. Makino
中科院分区：
文献类型：
--
作者：
K. Makino
短寿命的自由基产生于。伽马.. -用自旋捕集法将DL-蛋氨酸水溶液辐照转化为相对稳定的自旋加合物，并用高效液相色谱和ESR波谱对自旋加合物进行了鉴定。发现了4种自旋加合物，其结构分别为CH/sub 3/SCH/sub 2/CH/sub 2/CH（COO/sup -/）-N（O）-/sup t/Bu，/sup t/Bu-N（O）-CH/sub 2/CH/sub 2/CH（NH/sub 2/）COO/sup -/，CH/sub 3/-N（O）-/sup t/Bu，/sup t/Bu-N（O）-/sup t/Bu.七位数。
Short-lived radicals produced in ..gamma..-irradiated aqueous solutions of DL-methionine were converted into relatively stable spin adducts by means of spin trapping, and the spin adducts were identified by high performance liquid chromatography and ESR spectroscopy. Four spin adducts were found and their structures identified as follows: CH/sub 3/SCH/sub 2/CH/sub 2/CH(COO/sup -/)-N(O)-/sup t/Bu, /sup t/Bu-N(O)-CH/sub 2/CH/sub 2/CH(NH/sub 2/)COO/sup -/, CH/sub 3/-N(O)-/sup t/Bu, /sup t/Bu-N(O)-/sup t/Bu. 7 figures.