Application of polymeric high-internal-phase-emulsion-coated stationary-phase columns in open-tubular capillary electrochromatography

Choudhury, Sidratul and Connolly, Damian and White, Blánaid (2016) Application of polymeric high-internal-phase-emulsion-coated stationary-phase columns in open-tubular capillary electrochromatography. Journal of Applied Polymer Science, 133 (48). ISSN 0021-8995

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Abstract

The application of polymeric high-internal-phase emulsion (polyHIPE) capillary coatings for open-tubular analytical separation columns was demonstrated in this study for the first time. Multiple polystyrene-co-divinylbenzene polyHIPE layers with an average total depth of 1.73 µm were coated onto internal capillary surfaces to create open-tubular columns (20 cm coating and 32.5 cm effective length). With these columns for open-tubular capillary electrochromatography, ethylbenzene and pentylbenzene were separated. Although the overall separation capacity of the produced columns was low, the polyHIPE coatings improved the analyte peak shape, decreased the total run time, and improved the peak symmetries relative to comparable unmodified open-tubular columns. In addition, the use of these novel polyHIPE columns led to the use of 30% less organic modifier. These columns have the potential to improve the shelf life of open-tubular columns typically used in capillary electrochromatography.

Item Type:	Article
Additional Information:	Funding Information: Funding from the Irish Research Council for S. Choudhury (contract grant number RS/2012/24) is gratefully acknowledged. Publisher Copyright: © 2016 Wiley Periodicals, Inc.
Uncontrolled Keywords:	/dk/atira/pure/subjectarea/asjc/1600
Departments or Groups:
Depositing User:	Admin SSL
Date Deposited:	19 Oct 2022 23:08
Last Modified:	07 Jun 2023 18:44
URI:	http://repository-testing.wit.ie/id/eprint/4239

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