γ射线诱导水溶液中胸腺嘧啶-（甲基-14C）的去甲基化作用。
gamma-Ray-induced demethylation of thymine-(methyl-14C) in aqueous solution.
作者信息
Merwitz O, Schüller M
出版信息
Int J Radiat Biol Relat Stud Phys Chem Med. 1981 Nov;40(5):557-61. doi: 10.1080/09553008114551521.
PMID:6975260
Abstract
gamma-Ray-induced demethylation of thymine in deaerated aqueous solution was observed and quantitatively measured for the first time using thymine-(methyl-14C). An airfree 5 x 10(-5) M aqueous solution was irradiated with doses of 2 x 10(3)-2 x 10(4) Gy. Radio-gaschromatographic analyses provided proof for the formation of methanol (G - 7.6 x 10(-3)), and methane (G = 2.5 x 10(-5)).
摘要
首次使用胸腺嘧啶-（甲基-14C）观察并定量测量了γ射线在脱氧水溶液中诱导的胸腺嘧啶脱甲基作用。用2×10³-2×10⁴戈瑞的剂量照射无氧的5×10⁻⁵M水溶液。放射性气相色谱分析为甲醇（G = 7.6×10⁻³）和甲烷（G = 2.5×10⁻⁵）的形成提供了证据。
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