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首页> 外文期刊>Journal of liquid chromatography and related technologies >Enantioseparations by capillary electrophoresis using chiral glycosidic surfactants. II. Comparison of chiral cyclohexyl-alkyl-#beta#-D-maltoside surfactants
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Enantioseparations by capillary electrophoresis using chiral glycosidic surfactants. II. Comparison of chiral cyclohexyl-alkyl-#beta#-D-maltoside surfactants

机译：使用手性糖苷表面活性剂通过毛细管电泳进行对映体分离。二。手性环己基烷基-＃β＃-D-麦芽糖苷表面活性剂的比较

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摘要

Three different glycosidic surfactants, namely cyclohexyl-butyl-#beta#-D-maltoside(CYMAL-4), cyclohexyl-pentyl-#beta#-D-maltoside(CYMAL-5), and cyclothexyl-hexyl-#beta#-D-maltoside(CYMAL-6), were compared in the enantioseparation of some dansyl amino acids and emthylated tryptophans. The three CYMAL surfactants have the same chiral maltoside head group but differ in the length of the hydrophobic tail. Increasing the length of the hydrophobic tail seems to shifrt the optimum surfactat concentration for maximum enantioresolution towards lower conentration values. In order to extend the range of optimum surfactant concentration over which maximum enantioresolution can be achieved, mixed CYMAL surfactant systems were introduced and evaluated. They consisted of mixing CYMAL-6 with either cyclohexyl-methyl-#beta#-D-maltoside(CYMAL-1)or cyclohexyl-ethyl-#beta#-D-maltoside(CYMAL-2).
机译：三种不同的糖苷表面活性剂，即环己基丁基-β-β-D-麦芽糖苷（CYMAL-4），环己基戊基-β-β-D-麦芽糖苷（CYMAL-5）和环己基-己基-β-D-D麦芽糖苷（CYMAL-6）的对映体分离中，一些丹酰基氨基酸和甲基化色氨酸被比较。三种CYMAL表面活性剂具有相同的手性麦芽糖苷头基团，但疏水性尾部的长度不同。增加疏水性尾部的长度似乎会使最佳表面活性剂浓度变小，以使最大对映体浓度朝较低的浓度值方向发展。为了扩大可以达到最大对映体分离度的最佳表面活性剂浓度范围，引入并评估了混合CYMAL表面活性剂体系。它们包括将CYMAL-6与环己基甲基-β-β-D-麦芽糖苷（CYMAL-1）或环己基乙基-β-β-D-麦芽糖苷（CYMAL-2）混合。

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