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Junkers, J. ; Schmitt-Kopplin, P. ; Munch, J.-C. ; Kettrup, A.

Up-scaling capillary zone electrophoresis separations of polydisperse anionic polyelectrolytes with preparative free-flow electrophoresis exemplified with a soil fulvic acid.

Electrophoresis 23, 2872-2879 (2002)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
A scale-up of analytical capillary zone electrophoresis (CZE) to preparative free-flow electrophoresis (FFE) is described. FFE allows fractionations based on charge densities in larger amounts than in CZE, enabling further off-line analysis of the fractions. Model compounds (carboxylic acids and polystyrene sulfonates) showed a similar behavior in FFE as in CZE. Diffusion and electrodynamic distortion effects are more pronounced in FFE than in CZE. A soil fulvic acid was analyzed by CZE and fractionated by FFE. A comparison of the FFE fractions with CZE measurements of the same sample using the effective mobility scale showed good agreement of the two methods.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Capillary zone electrophoresis; Charge density; Effective mobility; Free-flow electrophoresis; Fulvic acid; Humic substance
ISSN (print) / ISBN 0173-0835
e-ISSN 1522-2683
Zeitschrift Electrophoresis
Quellenangaben Band: 23, Heft: 17, Seiten: 2872-2879 Artikelnummer: , Supplement: ,
Verlag Wiley
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Soil Ecology (IBOE)
Institute of Ecological Chemistry (IOEC)