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Determination of cyclic fatty acids by gas‐liquid chromatography
Author(s) -
Black L. T.,
Eisenhauer R. A.
Publication year - 1963
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/bf02633688
Subject(s) - monomer , gas chromatography , chemistry , chromatography , linseed oil , crystallization , linolenic acid , fatty acid , organic chemistry , polymer , linoleic acid
A method is described to determine cyclic fatty acids in cyclic monomers by gas‐liquid chromatography (GLC), which separates saturated straight‐chain esters from cyclic esters. The content of cyclic esters can be determined by integration of the area on the chromatograph under the cyclic peaks. GLC was applied to cyclic monomers made from linseed oil and from linolenic acid. Samples of both hydrogenated and nonhydrogenated cyclic monomers were analyzed; however, more reliable results were obtained on the hydrogenated samples. The results show a standard deviation of 0.25 for linseed oil and 0.36 for linolenic acid. Accuracy of the analysis was established by comparing data with that obtained by crystallization. The GLC method is approximately three times faster.