羟胺衍生物的辐解研究 ⅡN,N-二乙基羟胺辐解产物中气态烃类的定性定量分析

Study on Radiation Degradation of Hydroxylamine Derivatives Ⅱ. The Qualitative and Quantitative Analysis of Light Hydrocarbons Produced by Radiation Degradation of N,N-diethyl hydroxylamine

用三氧化二铝毛细柱与氢火焰离子化检测器联用的气相色谱法,定性定量分析了N,N 二乙基羟胺水溶液辐解产生的气态烃类。结果表明:当吸收剂量为10～1000kGy时,N,N 二乙基羟胺水溶液辐解产生的气态烃类主要有甲烷、乙烷、乙烯、丙烷和正丁烷。甲烷、乙烷、丙烷和正丁烷的体积分数都随吸收剂量的增加而增加;而乙烯的体积分数先是随剂量的增加而增加,当剂量大于500kGy时,其体积分数则随剂量的增加而明显减少。

The qualitative and quantitative analysis of light hydrocarbons produced by radiation degradation of N,N-diethyl hydroxylamine are reported. These analyses are performed on the gas chromatography in which a porous layer open tubular column coated with aluminum oxide and a flame-ionization detector are used. When the doses are between 10 and 1 000 kGy,the main light hydrocarbons produced by radiation degradation of N,N-diethyl hydroxylamine are methane, ethane, ethene, propane and n -butane. The volume fraction of methane,ethane, n -butane and propane are increased with the increase of dose. The volume fraction of ethene is also increased with the increase of dose at first, however,when the absorbed dose is higher than 500 kGy, The volume fraction of ethene is decreased with the increase of dose.