Polyelectrolyte-modified short microchannel for cation separation.


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… (More)


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@article{Bai2004PolyelectrolytemodifiedSM, title={Polyelectrolyte-modified short microchannel for cation separation.}, author={Xiaoxia Bai and Christophe Roussel and Henrik Jensen and Hubert H Girault}, journal={Electrophoresis}, year={2004}, volume={25 6}, pages={931-5} }