The equivalent chain lengths on gas-liquid chromatography of the isomeric methylene-interrupted methyl cis, cis-octadecadienoates (2,5-to 14,17-) 'were de: tcrmined on eight different liquid phases, two of which were in capillary columns.: The equivalent chain length values increased with distance
Fatty acids: VII. The gas-liquid chromatographic properties of all dimethylene interrupted methyl cis,cis-octadecadienoates
β Scribed by C.H. Lam; M.S.F. Lie Ken Jie
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 621 KB
- Volume
- 117
- Category
- Article
- ISSN
- 1873-3778
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Aff the dImethylene-inferrupied Fethyl octadecadiynoates have been synthesised and the gas-liquid chromatographic behaviour of these isomers was studied on polar [Carbowax 2OM, FFAP, DEGA, DEGS and War IOC (rcceniIy renamed as Apolw tOc)f, semi-poIar (XE-60) and non-p&x (SE-IO, OV-101 and Apiezon L)
Eight isomeric methyl cis, cis-octadecadienoates (5,12; 6,12; 7,12; 6,11 ; 8,12; 6,10; 9,12; and 6,9) have been converted to dicyclopropane esters. The GLC behaviour, NMR spectra, and mass spectra of the dimethyleneoctadecanoates are discussed.
The chromatographic properties of the cis and trans methyl octadecenoates and of some C12 and Cls acetylenic esters on thin layers of silica impregnated with silver nitrate and on some GLC systems are reported. The possibility of identification and separation of these isomers is discussed.