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Effect of ion adsorption on CEC separation of small molecules using hypercrosslinked porous polymer monolithic capillary columns
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen. (Merck SeQuant AB, Umeå, Sweden)
Vise andre og tillknytning
2012 (engelsk)Inngår i: Journal of Separation Science, ISSN 1615-9306, E-ISSN 1615-9314, Vol. 35, nr 12, s. 1502-1505Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Both poly(styrene-co-vinylbenzyl chloride-co-divinylbenzene) and poly(4-methylstyrene-co-vinylbenzyl chloride-co-divinylbenzene) monolithic columns have been hypercrosslinked and for the first time used to achieve capillary electrochromatographic separations. Although these columns do not contain ionizable functionalities, electroosmotic flow was observed due to adsorption of ions from a buffer solution contained in the mobile phase on the surface of the hydrophobic polymer. An increase of more than one order of magnitude was observed with the use of both monolithic polymers. The hypercrosslinking reaction creates a large surface area thus enabling adsorption of a much larger number of ions. Alkylbenzenes were successfully separated using the hypercrosslinked monolithic columns.

sted, utgiver, år, opplag, sider
Wiley-VCH Verlagsgesellschaft, 2012. Vol. 35, nr 12, s. 1502-1505
Emneord [en]
Capillary electrochromatography, Hypercrosslinking, Ion adsorption, Polymer monolith
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Identifikatorer
URN: urn:nbn:se:umu:diva-57664DOI: 10.1002/jssc.201200138ISI: 000306010900013OAI: oai:DiVA.org:umu-57664DiVA, id: diva2:543587
Tilgjengelig fra: 2012-08-08 Laget: 2012-08-08 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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