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Gas chromatography of Cis‐Trans fatty acid isomers on nitrile silicone capillary columns
Author(s) -
Litchfield Carter,
Reiser Raymond,
Isbell A. F.,
Feldman G. L.
Publication year - 1964
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/bf02661905
Subject(s) - cis–trans isomerism , nitrile , structural isomer , chemistry , silicone oil , chromatography , polymer , elution , linolenate , gas chromatography , capillary action , organic chemistry , fatty acid , materials science , composite material
Three nitrile silicone polymers have been evaluated as liquid phases for gas chromatographic separation of the geometric isomers of methyl oleate, methyl linoleate, and methyl linolenate on capillary columns. A polymer of ॆ‐cyanoethylmethylsiloxane proved the most effective. This liquid phase separated oleate from elaidate, resolved the four geometric isomers of linoleate into three peaks, and divided the eight geometric isomers of linolenate into six peaks. Two other copolymers of dimethylsiloxane and ॆ‐cyanoethylmethylsiloxane gave poorer resolution of cis‐trans isomers, but showed different elution patterns for the geometric isomers of linoleate and linolenate.