An odd-chain saturated fatty acid
Heptacosanoic acid is an odd-chain saturated fatty acid. It has been used as an internal standard for the quantification of very long-chain fatty acids (VLCFAs) in human serum.1 Heptacosanoic acid has been found in wood smoke, as well as in urban and rural emissions of fine particulate matter less than 2.5 µm in aerodynamic diameter (PM2.5).2,3
1.Paik, M.J., Lee, K.O., and Shin, H.S.Determination of very-long-chain fatty acids in serum by gas chromatography-nitrogen-phosphorus detection following cyanomethylationJ. Chromatogr. B Biomed. Sci. Appl.721(1)3-11(1999) 2.Rogge, W.F., Hildemann, L.M., Mazurek, M.A., et al.Sources of fine organic aerosol. 9. Pine, oak, and synthetic log combustion in residential fireplacesEnviron. Sci. Technol.32(1)13-22(1998) 3.Zheng, M., Cass, G.R., Schauer, J.J., et al.Source apportionment of PM2.5 in the southeastern United States using solvent-extractable organic compounds as tracersEnviron. Sci. Technol.36(11)2361-2371(2002)
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