| 异戊二烯与OH自由基光化学反应的二次有机气溶胶的生成 |
| |
| 引用本文： | 耿春梅,杜莎莎,殷宝辉,刘莹,刘红杰,陈建华,王玮.异戊二烯与OH自由基光化学反应的二次有机气溶胶的生成[J].中国科学:化学,2011(7):1206-1214. |
| |
| 作者姓名： | 耿春梅 杜莎莎 殷宝辉 刘莹 刘红杰 陈建华 王玮 |
| |
| 作者单位： | 中国环境科学研究院大气环境研究所大气化学和气溶胶研究室; |
| |
| 基金项目： | 国家自然科学基金(40705043&40775075); 环保公益性行业科研专项(200809152&200809052); 中央级公益性科研院所基本科研业务专项(2009KYYW01&2009KYYW16))等项目支持 |
| |
| 摘 要： | 利用烟雾箱模拟装置,研究了异戊二烯与OH自由基反应的二次有机气溶胶(SOA)的生成.反应中生成的气相产物通过质子转移反应质谱仪(PTR-MS)测定,SOA的浓度及粒径谱分布通过高分辨率粒径谱仪(EEPS3090)测定.研究表明:甲基丙烯醛(MAC)/甲基乙烯基酮(MVK)、乙醛、甲醛、甲醇、甲酸/乙醇、乙醇醛、甲基乙二醛、丙酮/丙醛等为主要气相产物,各组实验中MAC/MVK和乙醛浓度达到最大时,其产率分别介于13.78%～37.72%和5.38%～9.34%(以C计)范围内;SOA生成量及其中值粒径随异戊二烯反应量的增加而增加,气相物质稳定后,SOA产率在5.6%～11.7%范围内,粒径在22～165nm范围内.
|
| 关 键 词： | 异戊二烯 OH自由基 二次有机气溶胶(SOA) 光化学反应 |
Secondary organic aerosol formation from the photochemical reaction of isoprene with OH radical |
| |
| GENG ChunMei,DU ShaSha,YIN BaoHui,LIU Ying,LIU HongJie,CHEN JianHua & WANG Wei Laboratory of Atmospheric Chemistry , Aerosol.Secondary organic aerosol formation from the photochemical reaction of isoprene with OH radical[J].Scientia Sinica Chimica,2011(7):1206-1214. |
| |
| Authors: | GENG ChunMei DU ShaSha YIN BaoHui LIU Ying LIU HongJie CHEN JianHua & WANG Wei Laboratory of Atmospheric Chemistry Aerosol |
| |
| Affiliation: | GENG ChunMei,DU ShaSha,YIN BaoHui,LIU Ying,LIU HongJie,CHEN JianHua & WANG Wei Laboratory of Atmospheric Chemistry and Aerosol,Institute of Atmospheric Environment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China |
| |
| Abstract: | Using smog chamber,Secondary organic aerosol (SOA) formation from the reaction of isoprene with OH radical was studied.Gaseous products were determined by proton-transfer-reaction mass spectrometer (PTR-MS) while SOA concentration and size distribution were determined by EEPS3090.The dominating gaseous products were methacrolein (MAC)/methyl vinyl ketone (MVK),acetaldehyde,formaldehyde,methanol,formic acid/ethanol,glycollic aldehyde,methylglyoxal,acetone/propionaldehyde and so on.The highest production of M... |
| |
| Keywords: | isoprene OH radical secondary organic aerosol (SOA) photochemical reaction |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
