Separation of Chlorophenols by HPLC and Capillary Electrochromatography Using .BETA.-Cyclodextrin-bonded Stationary Phases.

Polar stationary phases for capillary electrochromatography.

This review article summarizes the variety of polar stationary phases that have been employed for capillary electrochromatographic separations. Compared with reversed-phase stationary phases, the polar alternatives provide a completely different retention selectivity towards polar and charged analytes. Different types of polar stationary phases are reviewed, including the possible retention mec...

Enantiomer separation of mandelates and their analogs on cyclodextrin derivative chiral stationary phases by capillary GC.

Enantiomer separation of mandelates and their analogs, which are important intermediates in asymmetric synthetic and pharmaceutical chemistry, was investigated by capillary gas chromatography using different cyclodextrin derivative chiral stationary phases (CD CSPs). The used cyclodextrin derivatives included permethylated beta-CD (PMBCD), permethylated gamma-CD, heptakis(2,6-di-O-butyl-3-O-but...

Focusing Review Development and Pharmaceutical Applications of Functional Stationary Phases for Capillary Electrochromatography and Chiral Separation

We synthesized 3-(4-sulfo-1,8-naphthalimido)propyl-modified silica (SNAIP) for capillary electrochromatography (CEC). The unique structure of SNAIP contributed to the retention by three interactions including hydrophobic, electrostatic and interactions and the acceleration of electroosmotic flow at an acidic condition. The CEC employing SNAIP was successively applied to the rapid separations of...

Hplc Separation of Pidotimod Enantiomers Using Beta-cyclodextrin Based Chiral Stationary Phase

Enantiomer separation by capillary electrochromatography using fritless packed columns.

This review summarizes recent developments in the field of enantiomer separation by capillary electrochromatography using fritless packed columns. Various enantiomers have been separated by employing fritless packed columns prepared in a fused silica capillary either by the immobilization of chiral packing materials by sintering or sol-gel technology or by in situ polymerization of a mixture co...