Control of EOF in CE by different ways of application of radial electric field (Articolo in rivista)

Type
Label
  • Control of EOF in CE by different ways of application of radial electric field (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Petra Sázelová, Václav Kasicka, Dusan Koval, Zdenek Prusík, Salvatore Fanali, Zeineb Aturki (2007)
    Control of EOF in CE by different ways of application of radial electric field
    in Electrophoresis (Weinh., Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Petra Sázelová, Václav Kasicka, Dusan Koval, Zdenek Prusík, Salvatore Fanali, Zeineb Aturki (literal)
Pagina inizio
  • 756 (literal)
Pagina fine
  • 766 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 28 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • Control of EOF in CE by different ways of application of radial electric field (literal)
Abstract
  • Various ways of application of radial electric field for the control of electrokinetic potential and EOF in a home-made device for CE are presented. The device comprises three highvoltage power supplies, which are used to form a radial electric field across the fused-silica capillary wall. One power supply provides the internal electric field – a driving force for electrophoretic migration of charged analytes and for the EOF. Two power supplies are connected to the ends of the outer low-conductivity polymeric coating, which is formed by the dispersion of insoluble conductive copolymer of aniline and p-phenylendiamine in polystyrene matrix (dissolved in N-methylpyrrolidone) attached to the original outer polyimide coating of the capillary. They are able to constitute the external longitudinal electric field with variable values of electric potential at both ends of the outer coating. The potential gradient between the external and internal electric field is perpendicular to the capillary wall and forms a radial electric field across the capillary wall, which affects the electrokinetic potential at the solid–liquid interface and EOF inside the capillary. The developed device and meth (literal)
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