Mechanisms for the formation of secondary organic aerosol components from the gas-phase ozonolysis of α-pinene
作者:Yan Ma、Andrew T. Russell、George Marston
DOI:10.1039/b803283a
日期:——
added Criegee intermediate scavengers, NO(2)etc.) was investigated to probe the mechanisms of formation of these products; additional information was obtained by studying the ozonolysis of an enal and an enone derived from alpha-pinene. On the basis of experimental findings, previously suggested mechanisms were evaluated and detailed gas-phase mechanisms were developed to explain the observed product formation
在“无OH”条件下的静态室实验中研究了α-pine烯的气相臭氧分解。在衍生化之后,使用与质谱联用的气相色谱法在冷凝相中鉴定了一系列多功能产物,特别是低挥发性的羧酸。研究了产物收率对反应条件(湿度,OH自由基清除剂的选择,添加的Criegee中间清除剂,NO(2)等)的依赖性,以探讨这些产物的形成机理。通过研究烯类和衍生自α-an烯的烯酮的臭氧分解获得了更多信息。根据实验结果,对先前提出的机理进行了评估,并开发了详细的气相机理来解释观察到的产物形成。