脂肪酸。VII。所有亚甲基间断的反式，反式-十八碳二烯酸甲酯的气液色谱性质。
Fatty acids. VII. Gas-liquid chromatographic properties of all dimethylene interrupted methyl trans,trans-octadecadienoates.
作者信息
Lam C H, Lie Ken Jie M S
出版信息
J Chromatogr. 1976 Jun 23;121(2):303-11. doi: 10.1016/s0021-9673(00)85027-x.
All the dimethylene interrupted trans,trans-octadecadienoic acids were synthesised by lithium metal-ammonia reduction of the corresponding octadecadiynoic acids, except for the detla2t,6t isomer, which was obtained by the isomerisation of the delta2c,6c isomer. The gas-liquid chromatographic behaviour of the methyl esters was studied on polar [Carbowax 20M, FFAP, DEGA, DEGS, Silar 10C (recently renamed as Apolar 10) and SP 2330], semi-polar (XE-60), and non-polar (SE-30, OV101 and Apiezon L) stationary phases. The equivalent chain length of each isomer is recorded (including the delta2t,6c isomer) and the possibility of separation of these isomers is discussed.
除δ2t,6t异构体是通过δ2c,6c异构体的异构化反应制得外，所有二亚甲基间断的反,反-十八碳二烯酸均由相应的十八碳二炔酸经锂-液氨还原反应合成。研究了甲酯在极性固定相[聚乙二醇20M、FFAP、二乙二醇己二酸酯、二乙二醇琥珀酸酯、Silar 10C（最近更名为Apolar 10）和SP 2330]、半极性固定相（XE-60）和非极性固定相（SE-30、OV101和Apiezon L）上的气-液色谱行为。记录了每种异构体的等效链长（包括δ2t,6c异构体），并讨论了这些异构体的分离可能性。
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