cis-Pinic Acid, a Possible Precursor for Organic Aerosol Formation from the Ozonolysis of Alpha-Pinene.
A method for the analysis of carboxylic acids in aerosols was developed,based on the collection of particles on Teflon filters,extraction with dichloromethane, and derivatation with BF3-methanol followed by analysis of the formed methylesters by large volume injection GM/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.Being a dicarboxylic acid this product is estimated to posess an extremely low vapour pressure and may thus be an important element in gas-to-particle conversion of alpha pinene.
CHRISTOFFERSEN T.S.;
HJORTH Jens Liengaard;
HORIE O.;
JENSEN Niels Roland;
KOTZIAS Dimitrios;
MOLANDER L.;
RUPPERT L.;
VIRKKULA Aki Olavi;
WIRTZ K.;
1997-11-13
JRC15606
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