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PubMed · 15004857

Polyelectrolyte-modified short microchannel for cation separation.

Xiaoxia Bai·Christophe Roussel·Henrik Jensen·Hubert H Girault
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Abstract

Three alkali cations, potassium, sodium, and lithium, have been separated within 15 s in a 1 cm long polymer microchip. The separation microchannel is modified by a polycation, poly(allylammonium chloride), which makes the channel surfaces positively charged leading to a reversed electroosmotic flow (EOF) when compared to bare channels. Due to the decreased apparent mobility of the cations, the separation resolution is improved allowing the use of shorter channels.

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CationsElectrolytesElectrophoresis, CapillaryLithiumMetals, AlkaliMiniaturizationPotassiumSodiumJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.

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BibTeXRIS

Xiaoxia Bai, Christophe Roussel, Henrik Jensen, Hubert H Girault. 2004. Polyelectrolyte-modified short microchannel for cation separation.. https://doi.org/10.1002/elps.200305771

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