Liquid and subcritical CO2 separations of enantiomers on a broadly applicable polysiloxane chiral stationary phase

被引:61
作者
Pirkle, WH
Brice, LJ
Terfloth, GJ
机构
[1] School of Chemical Sciences, University of Illinois, Urbana
基金
美国国家科学基金会;
关键词
enantiomer separation; polysiloxane phases; chiral stationary phases; LC; carbon dioxide;
D O I
10.1016/S0021-9673(96)00460-8
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Incorporation of chiral selector 1 into a polysiloxane which is then immobilized on silica affords a chiral stationary phase (CSP 1) capable of resolving a broad array of enantiomers by either high-performance liquid chromatography or supercritical fluid chromatography (SFC). Like its brush-type analog, the commercial version of which is known as the Whelk-O 1, CSP 1, the ''polyWhelk-O'', is stable to normal and reversed-phase conditions and to a wide range of temperatures, mobile phases and additives. In most cases, the polyWhelk-O affords greater enantioselectivity and less retention than does the brush-type Whelk-O 1 under the same conditions. An extensive collection of separations of the enantiomers of a variety of types of compounds is presented to illustrate the scope and level of performance typically afforded by the polyWhelk-O columns.
引用
收藏
页码:109 / 119
页数:11
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