K. Kawamura, K. Ikushima
Sep 1, 1993
Citations
45
Influential Citations
619
Citations
Quality indicators
Journal
Environmental Science & Technology
Abstract
Low molecular weight dicarboxylic acids have been studied in the urban aerosol samples collected from Tokyo atmosphere in 1988-1989, by using a capillary GC and GC-MS method employing a dibutyl ester derivatization technique. A homologous series of C 2 -C 10 dicarboxylic acids were detected in the aerosols, including straight-chain saturated, unsaturated, branched-chain, and hydroxylated species. Molecular distributions of the diacids demonstrated that oxalic (C 2 ) acid was the most abundant throughout the four seasons, followed by C 3 and C 4 diacids: the C 2 diacid comprised 37-69% of the total diacid concentrations. The diacids with more carbon numbers were less abundant, although C6 and C9 diacids were relatively abundant