Experiences with packed capillary electrochromatography at ambient pressure
نویسندگان
چکیده
منابع مشابه
Perfusive Electroosmotic Transport in Packed Capillary Electrochromatography: Mechanism and Utility
Ž Abstract: In this study, silica-based packing materials with pore sizes herein ̊ . referred to primarily as channel diameters, d ranging from 60 to 4000 A were ch utilized to elucidate the role of pore size in CEC. Separations were conducted using a commercially available CE system, the inlet and outlet buffer reservoir compartments having been modified to allow constant application of ;150 ps...
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Porous sol-gel frits are fabricated in a capillary column by filling it with a solution of 3-(trimethoxysilyl)propyl methacrylate, hydrochloric acid, water, toluene (porogen), and a photoinitiator (Irgacure 1800) and exposing it to UV light at 365 nm for 5 min. The separation column (30 cm x 75 microm I.D.) contains between the inlet and outlet frits a 15-cm packed segment filled with 5-microm ...
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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...
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T he past several years have seen a significant resurgence of interest in cap i l l a ry electro ch ro m at ography(CEC), a hybrid technique that combines the high efficiency owing to the flow characteristics related to electroosmosis with the selectivity of high performance liquid chromatography(HPLC). In CEC, separations are generally carried out using fused silica capillaries packed with HPL...
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ژورنال
عنوان ژورنال: Journal of Chromatography A
سال: 1996
ISSN: 0021-9673
DOI: 10.1016/s0021-9673(96)00612-7