About: Polypyrrole-Coated and Polysulfate-Modified CE Capillaries

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Fused-silica capillaries covalently coated with polypyrrole offer some interesting properties for capillary electrophoresis. The polymeric, surface-bonded coating is chemically stable and reduces the adsorptive properties of the silica surface. At the same time, the weak positive surface charges offer the possibility of creating a strongly anionic surface when poly-sulfates are used as counter-ions. This affords an electroosmotic flow which is largely independent of pH. With sodium dodecyl sulfate in the background electrolyte, this effect is further enhanced. The potential of the approach is demonstrated with the separation of herbicides by micellar electrokinetic chromatography. Repeatability of electroosmotic mobility of less than 1% RSD is achieved. Fused-silica capillaries covalently coated with polypyrrole offer some interesting properties for capillary electrophoresis. The polymeric, surface-bonded coating is chemically stable and reduces the adsorptive properties of the silica surface. At the same time, the weak positive surface charges offer the possibility of creating a strongly anionic surface when poly-sulfates are used as counter-ions. This affords an electroosmotic flow which is largely independent of pH. With sodium dodecyl sulfate in the background electrolyte, this effect is further enhanced. The potential of the approach is demonstrated with the separation of herbicides by micellar electrokinetic chromatography. Repeatability of electroosmotic mobility of less than 1% RSD is achieved. (en)
Title	Polypyrrole-Coated and Polysulfate-Modified CE Capillaries Polypyrrole-Coated and Polysulfate-Modified CE Capillaries (en)
skos:prefLabel	Polypyrrole-Coated and Polysulfate-Modified CE Capillaries Polypyrrole-Coated and Polysulfate-Modified CE Capillaries (en)
skos:notation	RIV/61989592:15310/09:00010420!RIV11-GA0-15310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GP203/07/P223), S, Z(MSM6198959216)
http://linked.open...iv/cisloPeriodika	11-12
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Knob, Radim
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	334215
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/09:00010420
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Herbicides; Polysulfate surface; Covalent and polypyrrole coating; Capillary electrophoresis (en)
http://linked.open.../riv/klicoveSlovo	Capillary electrophoresis Covalent and polypyrrole coating Polysulfate surface Herbicides
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[EF981B3D55B1]
http://linked.open...i/riv/nazevZdroje	Chromatographia
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Study of discontinuous electrolyte sysmtems in capillary electrophoresis for separation of physiologically active compounds
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	69
http://linked.open...iv/tvurceVysledku	Čabala, Radomír KNOB, Radim Frank, Harmut Gerstmann, Silke
http://linked.open...ain/vavai/riv/wos	000268572800040
http://linked.open...n/vavai/riv/zamer	Modulation of signalling and regulatory pathways in normal and cancer cells
issn	0009-5893
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	15310
is http://linked.open...avai/riv/vysledek of	Polypyrrole-Coated and Polysulfate-Modified CE Capillaries Polypyrrole-Coated and Polysulfate-Modified CE Capillaries Polypyrrole-Coated and Polysulfate-Modified CE Capillaries

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