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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Latest update: 21 Jul 2024
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.