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Quizzed article | REF: P3367 V2

Capillary electrophoresis - Applications

Author: Nathalie DELAUNAY

Publication date: September 10, 2021, Review date: January 6, 2023 | Lire en français

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    1. Inorganic ions

    Capillary electrophoresis in CZE mode is perfectly suited to the analysis of inorganic ions, since these species are charged. The electrolyte, a conductive liquid that fills the capillary, is usually a buffer solution where the species migrate according to their own electrophoretic migration and the electroosmotic flow generated when a voltage is applied to the ends of the capillary, which has charged groups on its surface [P 3 365] . Two ions therefore have different speeds and are separated if their electrophoretic mobilities are different, i.e. if their charge-to-size ratios differ.

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