【摘要】 甲基过氧化氢(CH3OOH)是大气中一种主要的有机过氧化物,它的生成和去除过程将影响大气自由基的浓度水平。文章利用长光路傅里叶变换红外光谱(LP-FTIR)原位跟踪技术,实验室模拟研究了CH3OOH在常温和常压大气条件下的紫外光解反应,发现光解产物为HCHO,HC(O)OH,CH3OH,CO和CO2,此外实验中还观测到OH自由基的生成。根据分析结果推测了反应机理,并讨论了其大气化学意义。更多还原

【Abstract】 Methyl hydroperoxide（CH₃OOH） is one of the main organic peroxides in the atmosphere,and its formation and（removal） processes will have a significant impact on the concentration level of the atmospheric radicals.In the present paper,the technique of long path Fourier transform infrared（LP-FTIR） spectrometry was used for the in-situ investigation of the UV-photolysis of CH₃OOH under atmospheric conditions at normal temperature and pressure.The products of photolysis were identified as HCHO,HC（O）OH,CH₃OH,CO and CO₂.Moreover,OH radicals were also detected.Finally,the mechanisms of this reaction were extrapolated on the basis of the analysis results,and the atmospheric implications were discussed.更多还原