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A comparison of pyrrolidide and picolinyl ester derivatives for the identification of fatty acids in natural samples by gas chromatography‐mass spectrometry
Author(s) -
Christie William W.,
Brechany Elizabeth Y.,
Johnson Susan B.,
Holman Ralph T.
Publication year - 1986
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02537217
Subject(s) - chemistry , chromatography , mass spectrometry , gas chromatography , mass spectrum , gas chromatography–mass spectrometry , methyl oleate , polyunsaturated fatty acid , fatty acid methyl ester , silica gel , organic chemistry , fatty acid , catalysis , biodiesel
The pyrrolidide and picolinyl ester derivatives of the fatty acids in two natural lipid samples rich in unsaturated fatty acids, pig testis lipids and cod liver oil were satisfactorily resolved on capillary columns of fused silica coated with stationary phases of varying polarity. The picolinyl esters, in particular, when subjected to gas chromatography‐mass spectrometry on a column containing a cross‐linked methyl silicone, gave distinctive mass spectra, which could be interpreted in terms of both the numbers and positions of the double bonds.