Flow manipulation for sweeping with a cationic surfactant in microchip capillary electrophoresis
نویسندگان
چکیده
منابع مشابه
Flow manipulation for sweeping with a cationic surfactant in microchip capillary electrophoresis.
Flow manipulation in sweeping microchip capillary electrophoresis (CE) is complicated by the free liquid communication between channels at the intersection, especially when the electroosmotic flows are mismatched in the main channel. Sweeping in traditional CE with cationic micelles is an effective way to concentrate anionic analytes. However, it is a challenge to transfer this method onto micr...
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Sweeping is an effective and convenient way for online sample preconcentration in micellar electrokinetic chromatography. The usual procedure includes a hydrodynamic injection step carried out by applying pressure to the sample vial followed by the subsequent sweeping and separation processes. The injected sample volume is limited by the dimensions of the capillary because a part of the capilla...
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ژورنال
عنوان ژورنال: Journal of Chromatography A
سال: 2007
ISSN: 0021-9673
DOI: 10.1016/j.chroma.2007.08.042