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  • Title: Identification of very-long-chain fatty acids in rat and mouse harderian gland lipids by capillary gas chromatography-mass spectrometry.
    Author: Tvrzická E, Rezanka T, Krijt J, Janousek V.
    Journal: J Chromatogr; 1988 Oct 14; 431(2):231-8. PubMed ID: 3243780.
    Abstract:
    Lipids of Harderian ophthalmic gland were separated by means of thin-layer chromatography with flame ionization detection in an latroscan apparatus. Wax ester and polar lipids (phosphatidylethanolamine and phosphatidylcholine) were detected as the main lipids in rats and glyceryl ether diester and both polar lipids were the main lipids in mice. Fatty acids were determined in individual lipid classes by means of gas chromatography and gas chromatography-mass spectrometry on capillary columns. The content of fatty acids, the positional isomers of monoenoic acids being predominantly C18, C20 and C22, is most interesting. Very-long-chain fatty acids, saturated fatty acids up to C30 and even monoenoic acids up to C28 were detected. Branched-chain fatty acids, predominantly iso and anteiso, are minority components, although their chain length distribution (C15-C27) is broad.
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