About: Determination of cetyltrimethylammonium bromide by capillary isotachophoresis

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this work, a method of capillary isotachophoresis (ITP) for the study of cetyltrimethylammonium bromide (CTMB) sorption on various clays1 was developed. CTMB represents cationic surfactants that have detrimental effects to aquatic organisms and must be removed from water environment2. The used leading electrolytes (LE) consisted of 5 mM potassium hydrogen carbonate and acetic acid (pH=4.5). The terminating electrolytes (TE) contained 5 mM ß-alanine and acetic acid (pH=4.0). The concentrations of CTMB in used aqueous solutions were bellow its critical micelle concentration, i.e., ca. 0.7 mM.Adsorption of CTMB to the ITP separation compartment was prevented by non-ionic polymers, such as hydroxyethylcellulose (HEC), polyvinylalcohol (PVA), and polyvinylpyrrolidone (PVP), which were dissolved in LE. They decrease the ?-potentials of the capillary walls3. When using HEC, the zones of CTMB monomers and also micelles were recorded as a result of the ITP concentration effect4. However, in the case of PVA In this work, a method of capillary isotachophoresis (ITP) for the study of cetyltrimethylammonium bromide (CTMB) sorption on various clays1 was developed. CTMB represents cationic surfactants that have detrimental effects to aquatic organisms and must be removed from water environment2. The used leading electrolytes (LE) consisted of 5 mM potassium hydrogen carbonate and acetic acid (pH=4.5). The terminating electrolytes (TE) contained 5 mM ß-alanine and acetic acid (pH=4.0). The concentrations of CTMB in used aqueous solutions were bellow its critical micelle concentration, i.e., ca. 0.7 mM.Adsorption of CTMB to the ITP separation compartment was prevented by non-ionic polymers, such as hydroxyethylcellulose (HEC), polyvinylalcohol (PVA), and polyvinylpyrrolidone (PVP), which were dissolved in LE. They decrease the ?-potentials of the capillary walls3. When using HEC, the zones of CTMB monomers and also micelles were recorded as a result of the ITP concentration effect4. However, in the case of PVA (en) Stanovení cetyltrimethylammonium bromidu kapilární izotachoforézou (cs)
Title	Determination of cetyltrimethylammonium bromide by capillary isotachophoresis Determination of cetyltrimethylammonium bromide by capillary isotachophoresis (en) Stanovení cetyltrimethylammonium bromidu kapilární izotachoforézou (cs)
skos:prefLabel	Determination of cetyltrimethylammonium bromide by capillary isotachophoresis Determination of cetyltrimethylammonium bromide by capillary isotachophoresis (en) Stanovení cetyltrimethylammonium bromidu kapilární izotachoforézou (cs)
skos:notation	RIV/61989100:27360/04:00010197!RIV/2005/GA0/273605/N
http://linked.open.../vavai/riv/strany	604
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA104/02/1464)
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Praus, Petr
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	560058
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/04:00010197
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cetyltrimethylammonium bromide;capillary isotachophoresis (en)
http://linked.open.../riv/klicoveSlovo	cetyltrimethylammonium bromide capillary isotachophoresis
http://linked.open...ontrolniKodProRIV	[F0A00502BD92]
http://linked.open...v/mistoKonaniAkce	Ostrava
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	Chemické listy
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Bentonite interactions with the environment - the effect of geological history and actual conditions; use in active waste deep repositories
http://linked.open...UplatneniVysledku	2004
http://linked.open...iv/tvurceVysledku	Praus, Petr
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2004-09-06 (xsd:date)
issn	0009-2770
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Česká společnost chemická (ČSCH), VŠCHT Praha a ČZU Praha
http://localhost/t...ganizacniJednotka	27360

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