Electrophoretic separation of aniline derivatives using fused silica capillaries coated with acid treated single-wall carbon nanotubes

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DOIResolve DOI: http://doi.org/10.1016/j.chroma.2005.02.089
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TypeArticle
Journal titleJournal of Chromatography A
Volume1074
Issue1-2
Pages187194; # of pages: 8
Subjectenv
AbstractThis paper reports on a new strategy for coating fused silica capillaries based on the ionic adsorption of acid treated single-walled carbon nanotubes (SWCNTs) on a poly(diallydimethylammonium chloride)-modified fused silica surface. The coated capillaries were used to demonstrate their performance for baseline separation of a mixture of seven nitrogen-containing aromatic compounds compared to capillary zone electrophoresis. This combined layer formed a coating material that could be useful for improvement of the selectivity of the solutes in an electrical field. We reasoned that the interaction of the solutes and the modified capillary wall occurred mainly via ionic interactions with the charged moieties of CNTs. The single-walled CNT modified capillaries were very stable and could be used for over 200 repeated analyses without compromising its analytical performance.
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AffiliationNRC Biotechnology Research Institute; National Research Council Canada
Peer reviewedNo
NRC number47261
NPARC number3538956
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Record identifier9bf46e7e-62f6-42fd-ac0e-7563f832dce6
Record created2009-03-01
Record modified2016-05-09
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