Characterization of crucial fragments during the nucleation and growth of secondary organic aerosol from the high-NO photo-oxidation of alpha-pinene
文献类型：期刊论文
| 作者 | Zhang, Peng; Ma, Pengkun1; Shu, Jinian1; Huang, Jingyun1; Yang, Bo1; Zhang, Haixu1 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2019-09-15 |
| 卷号 | 213页码:47-54 |
| ISSN号 | 1352-2310 |
| 关键词 | alpha-Pinene Photooxidation Secondary organic aerosol Composition characterization Formation mechanism |
| 英文摘要 | We propose the use of thermal-desorption dichloromethane-induced low-pressure photoionization mass spectrometry (TD-CH2Cl2-induced LPPI-MS) via a laboratory-built krypton vacuum ultraviolet lamp for the real-time analysis of alpha-pinene secondary organic aerosol (alpha P-SOA). Using this technology, the peak intensities of the majority of SOA were enhanced by at least two orders of magnitude after doping with 720 ppm dichloromethane. Clear temporal evolutions of the SOA oxidation products with particle formation were also observed. The molecular ion peaks at m/z value of 153 and 109 showed a similar sharp increase with particle-number concentration. These two species (i.e. protonated alpha-campholenic aldehyde or dehydrated protonated pinalic-3-acid) with the fragment at m/z 153 and 109 may be critical species to prompt new particle formation. Furthermore, the monomers with the fragment ion peaks at m/z value of 69 and 87 (i.e. protonated pinonic acid, pinic acid, oxopinonic acid, and OH-pinonic acid etc.) were found to be intermediate species with high reactivities during SOA growth. The obtained results provide supplementary knowledge regarding the characterization and temporal evolution of the key components that promote alpha P-SOA formation. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42521]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Simulat & Pollut Control, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Peng,Ma, Pengkun,Shu, Jinian,et al. Characterization of crucial fragments during the nucleation and growth of secondary organic aerosol from the high-NO photo-oxidation of alpha-pinene[J]. ATMOSPHERIC ENVIRONMENT,2019,213:47-54. |
| APA | Zhang, Peng,Ma, Pengkun,Shu, Jinian,Huang, Jingyun,Yang, Bo,&Zhang, Haixu.(2019).Characterization of crucial fragments during the nucleation and growth of secondary organic aerosol from the high-NO photo-oxidation of alpha-pinene.ATMOSPHERIC ENVIRONMENT,213,47-54. |
| MLA | Zhang, Peng,et al."Characterization of crucial fragments during the nucleation and growth of secondary organic aerosol from the high-NO photo-oxidation of alpha-pinene".ATMOSPHERIC ENVIRONMENT 213(2019):47-54. |
入库方式： OAI收割
来源：生态环境研究中心
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