氯苯类污染物在高层大气环境中形成的可能性  

Possible Formation Mechanism of Chlorobenzenes' Pollutants in Upper Atmosphere

作　　者：曹洁[1] 崔义[1] 刘淑莹[2] 

机构地区：[1]北京理工大学化学系 [2]中国科学院长春应用化学研究所,长春130022

出　　处：《应用化学》2010年第3期249-256,共8页Chinese Journal of Applied Chemistry

基　　金："九七三"计划前期研究专项(2008CB417204);吉林省科技发展计划基金(20060576);环境化学与生态毒理学国家重点实验室开放基金(KF2008-02)资助项目

摘　　要：简要地总结了大气离子与自由基反应的研究进展和以氯苯为目标产物的气相离子-分子反应的质谱研究。根据大气层状结构图、高层大气的特点以及相关的研究结果,提出了氯苯类污染物的形成不排除是大气化学反应尤其是离子反应产物的观点。对进一步研究大气中氯苯类污染物的生成机制和控制具有重要意义。Research on the gas-phase radical/ion chemistry was briefly summarized. Emphasis was given to the application of mass spectrometric technique to ion-molecule reactions between halocarbocations and aromatic compounds which gave rise to chlorobenzenes as one of the targeted products. That chlorobenzenes were readily formed in the mass spectrometer implied that chlorobenzenes in the atmosphere should not exclude the possibility of ion/radical chemistry reactions. The environmental significance of such reactions was also explored.

关 键 词：氯苯类污染物 质谱技术 离子-分子反应 

分 类 号：O644[理学—物理化学]