ドデシル=ポリ (オキシエチレン) =エーテルと2- (ヒドロキシエチル) -ドデカンアミド類のアルミナカラムクロマトグラフィーによる分離
1991 年 40 巻 12 号 p. 1120-1124
詳細
1991 年 40 巻 12 号 p. 1120-1124
An analytical method was developed for N, N-bis (2-hydroxyethyl) dodecanamide and N- (2-hydroxyethyl) dodecanamide in mixtures with dodecyl poly (oxyethylene) ethers using alumina column chromatography.
HPLC data for the mobile phase systems of the ethyl acetate with water and with methanol were found to indicate linear relationships between log k' and log (concentration of water [or methanol]) except when dodecyl poly (oxyethylene) ethers were used for methanol. An abrupt change in retention time was noted for dodecyl poly (oxyethylene) ether at a methanol concentration of about 3% in ethyl acetate. They virtually ceased to be retained regardless of the added numbers of ethylene oxide.
This elution behavior should be applicable to the development of suitable methods for the objective analysis.
