Polyelectrolyte-modified short microchannel for cation separation.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- Electrophoresis
دوره 25 6 شماره
صفحات -
تاریخ انتشار 2004