About: Influencing electroosmotic flow and selectivity in open tubular electrochromatography by tetrakis(pentafluorophenyl)porphyrin as capillary wall modifier

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About: Influencing electroosmotic flow and selectivity in open tubular electrochromatography by tetrakis(pentafluorophenyl)porphyrin as capillary wall modifier Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A physically adsorbed and covalently bonded prophyrin derivative, 5.10.15.20-tetrakis(pentafluorophenyl)porphyrin, H2TPFPP, has been used as a fused-silica capillary wall modifier in open tubular capillary electrochromatography (OT-CEC), and its influence on the electroosmotic flow (EOF) velocity and on the selectivity of TO-CEC separations of a set of model aromatic carobxylic acids has been tested. Whereas most of the coatings of this cattegory bring about an increase in selectivity with a concomitantslow down of the EOF,H2TPFPP/ coating, depending of pH of the background electrolyte used, resulted both in decreasing of EOF at pH 8,5 by 5% and in increasing of EOF by 10-43% at pH 6 and 5, respectively.The separation efficiency and the resolution of aromatic carboxylic acids separation in coated capillaries, namely in that one with covalent coating, were better than in the bure fused-silica capillary. The perspectives of H2TPFPP as calillary wall modifier are visualized in introducing well defined e A physically adsorbed and covalently bonded prophyrin derivative, 5.10.15.20-tetrakis(pentafluorophenyl)porphyrin, H2TPFPP, has been used as a fused-silica capillary wall modifier in open tubular capillary electrochromatography (OT-CEC), and its influence on the electroosmotic flow (EOF) velocity and on the selectivity of TO-CEC separations of a set of model aromatic carobxylic acids has been tested. Whereas most of the coatings of this cattegory bring about an increase in selectivity with a concomitantslow down of the EOF,H2TPFPP/ coating, depending of pH of the background electrolyte used, resulted both in decreasing of EOF at pH 8,5 by 5% and in increasing of EOF by 10-43% at pH 6 and 5, respectively.The separation efficiency and the resolution of aromatic carboxylic acids separation in coated capillaries, namely in that one with covalent coating, were better than in the bure fused-silica capillary. The perspectives of H2TPFPP as calillary wall modifier are visualized in introducing well defined e (en)
Title	Influencing electroosmotic flow and selectivity in open tubular electrochromatography by tetrakis(pentafluorophenyl)porphyrin as capillary wall modifier Influencing electroosmotic flow and selectivity in open tubular electrochromatography by tetrakis(pentafluorophenyl)porphyrin as capillary wall modifier (en)
skos:prefLabel	Influencing electroosmotic flow and selectivity in open tubular electrochromatography by tetrakis(pentafluorophenyl)porphyrin as capillary wall modifier Influencing electroosmotic flow and selectivity in open tubular electrochromatography by tetrakis(pentafluorophenyl)porphyrin as capillary wall modifier (en)
skos:notation	RIV/60461373:22340/03:00007432!RIV/2004/GA0/223404/N
http://linked.open.../vavai/riv/strany	111-119
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/01/0288), P(GA203/02/1467), Z(AV0Z4055905), Z(AV0Z5011922), Z(MSM 223400008)
http://linked.open...iv/cisloPeriodika	990
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Deyl, Zdeněk Svobodová, Jana Král, Vladimír
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	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	610435
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/03:00007432
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Electroosmotic flow; Selectivity; Electrochromatography; Coated capillaries; pH effects; Tetrakis(pentafluorophenyl)porphyrin; Carboxylic acids (en)
http://linked.open.../riv/klicoveSlovo	Carboxylic acids pH effects Selectivity Electroosmotic flow Electrochromatography Coated capillaries Tetrakis(pentafluorophenyl)porphyrin
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[6CA6B742744F]
http://linked.open...i/riv/nazevZdroje	Journal of Chromatography A
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Development and construction of the equipment for chip electrophoresis and applications for biologically active compounds High-performance analytical and preparative separations of biologically active peptides and proteins by capillary and free-flow electromigration methods
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	990
http://linked.open...iv/tvurceVysledku	Král, Vladimír Kašička, V. Charvátová, Jana Deyl, Zdeněk
http://linked.open...n/vavai/riv/zamer	Investigation of normal and pathological physiology of animals - the clarification of the physiological mechanisms operating in humans in health and disease Chemical principles of selected biological phenomena in medicine and ecology http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20223400008
issn	0021-9673
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	22340

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