Articles | Volume 8, issue 11
Research article
19 Nov 2015
Research article |  | 19 Nov 2015

An enhanced procedure for measuring organic acids and methyl esters in PM2.5

F. Liu, F. K. Duan, K. B. He, Y. L. Ma, K. A. Rahn, and Q. Zhang

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Cited articles

Adler, H. and Siren, H.: Study on dicarboxylic acids in aerosol samples with capillary electrophoresis, J. Anal. Methods Chem., 2014, 498168,, 2014.
Boucharat, C., Desauziers, V., and Cloirec, P. Le: Experimental design for the study of two derivatization procedures for simultaneous GC analysis of acidic herbicides and water chlorination by-products, Talanta, 47, 311–323, 1998.
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Duan, F. K., He K. B., and Liu X. D.: Concentration characteristics and sources of organic acids in PM2.5 in Beijing, ACTA Scientiae Circumstantiae, 6, 1139–1145, 2009.
Short summary
We have developed an enhanced solid-phase extraction pretreatment procedure to organic acids separated from methyl esters in fine aerosol. This procedure prevents the fatty acids and dimethyl phthalate from being overestimated. Furthermore, five polycyclic aromatic hydrocarbon acids were quantified, and correlations between the PAH-acids and tracer dicarboxylic and aromatic acids indicated that they came from primary or/and secondary emissions.