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A rapid method for concentrating highly unsaturated fatty acid methyl esters in marine lipids as an aid in their identification by GLC
Author(s) -
Jangaard Peter M.
Publication year - 1965
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02541174
Subject(s) - nitromethane , chemistry , fatty acid , iodine value , organic chemistry , flame ionization detector , unsaturated fatty acid , chromatography , methyl oleate , solubility , gas chromatography , catalysis
The selective solubility of unsaturated fatty acid methyl esters in nitromethane at temperatures down to 蜢20C can be used to concentrate highly unsaturated methyl esters. With a typical sample of marine oils methyl esters having an iodine value of 110舑190, a concentrate can be ready for GLC analysis in an hour or less and the nitromethane layer can be injected directly for analysis in GLC apparatus with ionization detectors. Examples of the use of the method in the identification of component fatty acids in herring oil are given.