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DOI | 10.1021/es500377d |
2-Hydroxyterpenylic Acid: An Oxygenated Marker Compound for alpha-Pinene Secondary Organic Aerosol in Ambient Fine Aerosol | |
Kahnt, Ariane1; Iinuma, Yoshiteru3; Blockhuys, Frank2; Mutzel, Anke3; Vermeylen, Reinhilde1; Kleindienst, Tadeusz E.4; Jaoui, Mohammed5; Offenberg, John H.4; Lewandowski, Michael4; Boege, Olaf3; Herrmann, Hartmut3; Maenhaut, Willy1,6; Claeys, Magda1 | |
发表日期 | 2014-05-06 |
ISSN | 0013-936X |
卷号 | 48期号:9页码:4901-4908 |
英文摘要 | An oxygenated MW 188 compound is commonly observed in substantial abundance in atmospheric aerosol samples and was proposed in previous studies as an a-pinene-related marker compound that is associated with aging processes. Owing to difficulties in producing this compound in sufficient amounts in laboratory studies and the occurrence of isobaric isomers, a complete assignment for individual MW 188 compounds could not be achieved in these studies. Results from a comprehensive mass spectrometric analysis are presented here to corroborate the proposed structure of the most abundant MW 188 compound as a 2-hydroxyterpenylic acid diastereoisomer with 2R,3R configuration. The application of collision-induced dissociation with liquid chromatography/electrospray ionization-ion trap mass spectrometry in both negative and positive ion modes, as well as chemical derivatization to methyl ester derivatives and analysis by the latter technique and gas chromatography/electron ionization mass spectrometry, enabled a comprehensive characterization of MW 188 isomers, including a detailed study of the fragmentation behavior using both mass spectrometric techniques. Furthermore, a MW 188 positional isomer, 4-hydroxyterpenylic acid, was tentatively identified, which also is of atmospheric relevance as it could be detected in ambient fine aerosol. Quantum chemical calculations were performed to support the diastereoisomeric assignment of the 2-hydroxyterpenylic acid isomers. Results from a time-resolved a-pinene photooxidation experiment show that the 2-hydroxyterpenylic acid 2R,3R diastereoisomer has a time profile distinctly different from that of 3-methyl-1,2,3-butanetricarboxylic acid, a marker for oxygenated (aged) secondary organic aerosol. This study presents a comprehensive chemical data set for a more complete structural characterization of hydroxyterpenylic acids in ambient fine aerosol, which sets the foundation to better understand the atmospheric fate of a-pinene in future studies. |
语种 | 英语 |
WOS记录号 | WOS:000335720100033 |
来源期刊 | ENVIRONMENTAL SCIENCE & TECHNOLOGY |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/60736 |
作者单位 | 1.Univ Antwerp, Dept Pharmaceut Sci, BE-2610 Antwerp, Belgium; 2.Univ Antwerp, Dept Chem, BE-2610 Antwerp, Belgium; 3.Leibniz Inst Tropospharenforsch TROPOS, D-04318 Leipzig, Germany; 4.US EPA, Natl Exposure Res Lab, Off Res & Dev, Res Triangle Pk, NC 27711 USA; 5.Alion Sci & Technol, Res Triangle Pk, NC 27711 USA; 6.Univ Ghent, Dept Analyt Chem, BE-9000 Ghent, Belgium |
推荐引用方式 GB/T 7714 | Kahnt, Ariane,Iinuma, Yoshiteru,Blockhuys, Frank,et al. 2-Hydroxyterpenylic Acid: An Oxygenated Marker Compound for alpha-Pinene Secondary Organic Aerosol in Ambient Fine Aerosol[J]. 美国环保署,2014,48(9):4901-4908. |
APA | Kahnt, Ariane.,Iinuma, Yoshiteru.,Blockhuys, Frank.,Mutzel, Anke.,Vermeylen, Reinhilde.,...&Claeys, Magda.(2014).2-Hydroxyterpenylic Acid: An Oxygenated Marker Compound for alpha-Pinene Secondary Organic Aerosol in Ambient Fine Aerosol.ENVIRONMENTAL SCIENCE & TECHNOLOGY,48(9),4901-4908. |
MLA | Kahnt, Ariane,et al."2-Hydroxyterpenylic Acid: An Oxygenated Marker Compound for alpha-Pinene Secondary Organic Aerosol in Ambient Fine Aerosol".ENVIRONMENTAL SCIENCE & TECHNOLOGY 48.9(2014):4901-4908. |
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