About: Combination of large volume sample stacking and dynamic pH junction for on-line preconcentration of weak electrolytes by capillary electrophoresis in comparison with isotachophoretic techniques

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About: Combination of large volume sample stacking and dynamic pH junction for on-line preconcentration of weak electrolytes by capillary electrophoresis in comparison with isotachophoretic techniques Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	An on-line preconcentration capillary electrophoresis (CE) technique, which combines a large volume sample stacking with a dynamic pH junction technique, is introduced in this paper. This dynamic pH junction with co-electroosmotic migration is formed between sodium borate pH 9.5 and sodium phosphate pH 2.5 with 150 mM sodium dodecylsulfate (SDS). A full capillary based injection allows determination of weak acidic compounds at ppb concentration levels (achieved LOD for benzoic acid was 11 nmol L-1). The proposed preconcentration method was compared with ITP/ITP (LOD 120 nmol L-1), ITP/CZE (LOD 740 nmol L-1) and a simple CZE method (LOD 23,330 nmol L-1). The analytical potential of this method was assessed with juice test samples. An on-line preconcentration capillary electrophoresis (CE) technique, which combines a large volume sample stacking with a dynamic pH junction technique, is introduced in this paper. This dynamic pH junction with co-electroosmotic migration is formed between sodium borate pH 9.5 and sodium phosphate pH 2.5 with 150 mM sodium dodecylsulfate (SDS). A full capillary based injection allows determination of weak acidic compounds at ppb concentration levels (achieved LOD for benzoic acid was 11 nmol L-1). The proposed preconcentration method was compared with ITP/ITP (LOD 120 nmol L-1), ITP/CZE (LOD 740 nmol L-1) and a simple CZE method (LOD 23,330 nmol L-1). The analytical potential of this method was assessed with juice test samples. (en)
Title	Combination of large volume sample stacking and dynamic pH junction for on-line preconcentration of weak electrolytes by capillary electrophoresis in comparison with isotachophoretic techniques Combination of large volume sample stacking and dynamic pH junction for on-line preconcentration of weak electrolytes by capillary electrophoresis in comparison with isotachophoretic techniques (en)
skos:prefLabel	Combination of large volume sample stacking and dynamic pH junction for on-line preconcentration of weak electrolytes by capillary electrophoresis in comparison with isotachophoretic techniques Combination of large volume sample stacking and dynamic pH junction for on-line preconcentration of weak electrolytes by capillary electrophoresis in comparison with isotachophoretic techniques (en)
skos:notation	RIV/61989592:15310/07:00004825!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6198959216)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Petr, Jan Maier, Vítězslav Ševčík, Juraj Horáková, Jana Znaleziona, Joanna
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	414129
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/07:00004825
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	capillary electrophoresis; on-line preconcentration; hydrodynamic injection; large volume sample stacking; dynamic pH junction; isotachophoresis (en)
http://linked.open.../riv/klicoveSlovo	hydrodynamic injection capillary electrophoresis isotachophoresis on-line preconcentration dynamic pH junction large volume sample stacking
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[0F3F482C743E]
http://linked.open...i/riv/nazevZdroje	Journal of Chromatography A: Symposium Volumes
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	1155
http://linked.open...iv/tvurceVysledku	Horáková, Jana Petr, Jan Maier, Vítězslav Znaleziona, Joanna Ševčík, Juraj Kanianský, Dušan Marák, Jozef Staňová, Andrea
http://linked.open...n/vavai/riv/zamer	Modulation of signalling and regulatory pathways in normal and cancer cells
issn	0021-9673
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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