cis-pinic acid, a possible precursor for organic aerosol formation from ozonolysis of α-pinene

被引：151

作者：

Christoffersen, TS

Hjorth, J

Horie, O

Jensen, NR

Kotzias, D

Molander, LL

Neeb, P

Ruppert, L

Winterhalter, R

Virkkula, A

Wirtz, K

Larsen, BR ^{[1
]}

机构：

[1] Commiss European Communities, Joint Res Ctr, Environm Inst TP290, I-21020 Ispra, VA, Italy

[2] Max Planck Inst Chem, Div Atmospher Chem, D-55128 Mainz, Germany

[3] Berg Univ Wuppertal, Wuppertal, Germany

[4] Ctr Estudios Ambientales Mediterraneo, Valencia, Spain

来源：

ATMOSPHERIC ENVIRONMENT | 1998年 / 32卷 / 10期

关键词：

dicarboxylic acids; secondary organic aerosols (SOA); terpenes;

D O I：

10.1016/S1352-2310(97)00448-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A method for the analysis of carboxylic acids in aerosols was developed, based on the collection of particles on Teflon filters (2.5 cm diameter with a 0.4 mu m pore size), extraction with dichloromethane, and derivatization with BF3-methanol followed by analysis of the formed methylesters by large-volume injection GC/MS. In aerosol samples from smog chamber experiments with alpha-pinene and ozone, this method was applied and resulted in the identification for the first time of cis-pinic acid. Yields were in the range of 1-3 % for 1000 pbbv alpha-pinene reacted with 750 pbbv ozone, and in in the range of 0.3-0.5% for 100 pbbv alpha-pinene reacted with 75 pbbv ozone. Being a dicarboxylic acid this product is estimated to possess an extremely low vapour pressure and may thus be an important element in gas-to-particle conversion of alpha-pinene. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1657 / 1661

页数：5

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