3-methyl-1,2,3-butanetricarboxylic acid:: An atmospheric tracer for terpene secondary organic aerosol

被引：237
作者：
Szmigielski, Rafal [1 ]
Surratt, Jason D. [2 ]
Gomez-Gonzalez, Yadian [1 ]
Van der Veken, Pieter [1 ]
Kourtchev, Ivan [1 ]
Vermeylen, Reinhilde [1 ]
Blockhuys, Frank [3 ]
Jaoui, Mohammed [4 ]
Kleindienst, Tadeusz E. [5 ]
Lewandowski, Michael [5 ]
Offenberg, John H. [5 ]
Edney, Edward O. [5 ]
Seinfeld, John H. [6 ,7 ]
Maenhaut, Willy [8 ]
Claeys, Magda [1 ]
机构：
[1] Univ Antwerp, Dept Pharmaceut Sci, BE-2610 Antwerp, Belgium
[2] CALTECH, Dept Chem, Pasadena, CA 91125 USA
[3] Univ Antwerp, Dept Chem, BE-2610 Antwerp, Belgium
[4] Alion Sci & Technol, Res Triangle Pk, NC USA
[5] US EPA, Off Res & Dev, Natl Exposure Res Lab, Res Triangle Pk, NC 27711 USA
[6] CALTECH, Dept Chem Engn, Pasadena, CA 91125 USA
[7] CALTECH, Dept Environm Sci & Engn, Pasadena, CA 91125 USA
[8] Univ Ghent, Inst Nucl Sci, Analyt Chem Lab, BE-9000 Ghent, Belgium
来源：
GEOPHYSICAL RESEARCH LETTERS | 2007年 / 34卷 / 24期
关键词：
PARTICULATE PRODUCTS; ALPHA-PINENE; OXIDATION; MONOTERPENES; PHOTOOXIDATION; FOREST; ISOPRENE; YIELDS; PM2.5; NOX;
D O I：
10.1029/2007GL031338
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Highly oxygenated compounds assigned to be oxidation products of alpha-pinene have recently been observed in substantial concentrations in ambient aerosols. Here, we confirm the unknown alpha- pinene tracer compound with molecular weight (MW) 204 as the C-8-tricarboxylic acid 3-methyl-1,2,3-butanetricarboxylic acid. Its gas and liquid chromatographic behaviors and its mass spectral characteristics in electron ionization and negative ion electrospray ionization perfectly agree with those of a synthesized reference compound. The formation of this compound is explained by further reaction of cis-pinonic acid involving participation of the OH radical. This study illustrates that complex, multi-generation chemistry holds for the photooxidation of alpha-pinene in the presence of NOx.
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页数：6
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