| 用于模拟SOA形成的烟雾腔的构造和表征 |
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| 引用本文： | 刘宪云,黄明强,王振亚,郝立庆,张为俊.用于模拟SOA形成的烟雾腔的构造和表征[J].环境科学与技术,2009,32(9). |
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| 作者姓名： | 刘宪云 黄明强 王振亚 郝立庆 张为俊 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所环境光谱学研究室,安徽,合肥,230031 |
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| 摘 要： | 为研究二次有机气溶胶的形成机理,设计制造了一种用于模拟二次有机气溶胶的形成过程烟雾腔实验系统,该系统主要包括样品进样系统,模拟反应系统即烟雾腔系统和产物检测系统三个部分,具有实时在线检测、效率高等优点。利用该实验装置模拟开展大气中含量较高的芳香烃化合物光氧化产生二次有机气溶胶的过程,使用TSI3321空气动力学直径测量系统、气溶胶飞行时间质谱等多种检测手段对二次有机气溶胶的形成进行表征。空白实验和羟基启动的光氧化实验结果表明烟雾腔内的气溶胶粒子是在黑光灯辐照下·OH自由基启动反应物光氧化产生的。实验结果表明研制的烟雾腔系统可以很好地实现对二次有机气溶胶形成过程的模拟和表征。
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| 关 键 词： | 烟雾腔 二次有机气溶胶 光化学模拟 表征 |
Construction and Characterization of a New Smog Chamber for Simulating the Formation of Secondary Organic Aerosol |
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| LIU Xian-yun,HUANG Ming-qiang,WANG Zhen-ya,HAO Li-qing,ZHANG Wei-jun.Construction and Characterization of a New Smog Chamber for Simulating the Formation of Secondary Organic Aerosol[J].Environmental Science and Technology,2009,32(9). |
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| Authors: | LIU Xian-yun HUANG Ming-qiang WANG Zhen-ya HAO Li-qing ZHANG Wei-jun |
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| Institution: | Laboratory of Environment Spectroscopy;Anhui Institute of Optics and Fine Mechanics;Chinese Academy of Sciences;Hefei 230031;China |
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| Abstract: | A new photochemical smog chamber facility was constructed for investigation of formation procedures of secondary organic aerosol(SOA),which includes sampling system,smog chamber system and detecting system.The system with the advantages of real-time detection and high efficiency was successfully used in simulating SOA formation procedure,and the results showed that the system was very suitable for characterization of the formation of SOA. |
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| Keywords: | smog chamber secondary organic aerosol(SOA) photochemical modeling characterization |
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