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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)
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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Anmerkungen
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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
Sprache
englisch
Veröffentlichungsjahr
2002
HGF-Berichtsjahr
0
ISSN (print) / ISBN
0173-0835
e-ISSN
1522-2683
Zeitschrift
Electrophoresis
Quellenangaben
Band: 23,
Heft: 17,
Seiten: 2872-2879
Verlag
Wiley
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Soil Ecology (IBOE)
Institute of Ecological Chemistry (IOEC)
Institute of Ecological Chemistry (IOEC)
POF Topic(s)
20402 - Sustainable Plant Production
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-504400-001
G-505100-007
G-505100-007
Erfassungsdatum
2002-12-11