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Reference type: Journal
Authors: Yan C, Gao RY, Zhang YK
Article Title: Capillary electrochromatography: Advances in instrumentation and stationary phases.
Publication date: 2004
Journal: Abstracts of Papers of the American Chemical Society
Volume: 227
Issue: (ANYL)
Page numbers: 254.
Alternative URL: http://www.chemistry.org/portal/resources/ACS/Subportals/analytical/anyl_sep_0304.pdf

Abstract: Capillary electrochromatography (CEC) combines the high separation efficiency of capillary electrophoresis (CE) with the versatile selectivity and large sample capacity of high performance liquid chromatography (HPLC). However, in practice, when CEC was used without pressure, there were problems and difficulties associated with bubble formation and column dry-out. These problems can be solved by a pressurized CEC (pCEC) system, in which a mobile phase is driven by both a pressurized flow and an electroosmotic flow (EOF). This talk will report our advances in instrumentation as well as stationary phases in pCEC. We have used packed columns with porous and non-porous particles. We will also report our invstigation on the development of monolithic columns and molecularly imprinted columns in pCEC . The effects of experimental parameters in pCEC, such as pressure and electrical field strength, on the separation parameters of capacity factor, resolution and selectivity will be also discussed.

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