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运用时间分辨红外发射光谱仪，研究了ＣＨ３ＣＯ和Ｃ２Ｈ５ＣＯ自由基在２４８ｎｍ的激光光解，观察到了高振动激发产物ＣＯ（ｖ≤８）。光解机理的分析表明，光解可资用能还未能在自由基内充分分散，很快发生了解离。
The time-resolved infrared emission spectrometer was used to study the photolysis of CH3CO and C2H5CO at 248nm. The CO (v≤8) was observed. The photolysis mechanism of the analysis shows that photolytic can not be fully funded in the free radical dispersion, dissociation soon occurred.