Identification of 4-oxoheptanedioic acid in the marine atmosphere by capillary gas chromatography-mass spectrometry - Sakaguchi, F.; Kawamura, K. (Elsevier)
A capillary gas Chromatographie (GC) analysis of the water-soluble fraction isolated from marine aerosols after BF"3-n-butanol derivatization showed the presence of several unknown carboxylic acids. Based on the characteristic mass fragment ions and molecular ion, and also the chemical composition calculated from accurate mass measurements, it is hypothesized that one of the unknown compounds is 4-oxoheptanedioic acid dibutyl ester. A comparison of its GC retention time and mass spectra with those of the dibutyl ester of an authentic standard confirmed that 4-oxoheptanedioic acid is present in the marine aerosols. This paper reports, for the first time, the identification of 4-oxoheptanedioic acid (4-ketopimelic acid) in marine atmospheric samples.
http://linkinghub.elsevier.com/retrieve/pii/0021-9673(94)00925-2
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