Capillary electrophoretic separation of enantiomers in a high-pH background electrolyte by means of the single-isomer chiral resolving agent octa(6-O-sulfo)-γ-cyclodextrin

被引:14
作者
Zhu, WH [1 ]
Vigh, G [1 ]
机构
[1] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA
关键词
background electrolyte composition; pH effects; enantiomer separation; cyclodextrins; amino acids;
D O I
10.1016/S0021-9673(02)01822-8
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
The new, alkali-stable, single-isomer, sulfated gamma-cyclodextrin, the sodium salt of octa(6-O-sulfo)-gamma-cyclodextrin (OS) was used for the first time to separate the enantiomers of non-ionic, acidic, basic and ampholytic analytes by capillary electrophoresis in high-pH aqueous background electrolytes. The effective mobilities and separation selectivities were found to follow trends similar to those observed earlier in acidic aqueous background electrolytes. OS proved to be a broadly applicable chiral resolving agent and afforded adequate peak resolution values with short separation times for a number of non-ionic, weak acid, weak base and ampholytic analytes. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:459 / 466
页数:8
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