About: Preconditions for reasonable detection sensitivity and for zone symmetry in electrophoretic separations of cluster borane anions

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About: Preconditions for reasonable detection sensitivity and for zone symmetry in electrophoretic separations of cluster borane anions Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Single-cage boron cluster anions with at least 11 cluster atoms, free of bonded functional groups that strongly absorb UV light, and their cobalt complexes have been the investigated compounds. Their UV-absorption spectra have absolute maxima between 200 and 215 nm. Corresponding molar extinction coefficients that are of the order of 10(3)-10(4) L mol(-1) cm(-1) indicate medium detection sensitivity. Its reaching requires elimination of background electrolytes that weaken the UV light beam in any way. Frequently used carboxylic acids and zwitterionic Good's buffers cannot be used as buffering compounds from this reason. Freshly prepared 1 mM solutions of boron cluster compounds in aqueous sodium chloride, chosen as indifferent electrolyte, which contain 20-30% (v/v) of methanol or acetonitrile, give zones free of tailing. After storing in the fridge, zones of the compounds became pronouncedly tailed even if their solutions remain clear and free of precipitation, turbidity or opalescence. The tail Single-cage boron cluster anions with at least 11 cluster atoms, free of bonded functional groups that strongly absorb UV light, and their cobalt complexes have been the investigated compounds. Their UV-absorption spectra have absolute maxima between 200 and 215 nm. Corresponding molar extinction coefficients that are of the order of 10(3)-10(4) L mol(-1) cm(-1) indicate medium detection sensitivity. Its reaching requires elimination of background electrolytes that weaken the UV light beam in any way. Frequently used carboxylic acids and zwitterionic Good's buffers cannot be used as buffering compounds from this reason. Freshly prepared 1 mM solutions of boron cluster compounds in aqueous sodium chloride, chosen as indifferent electrolyte, which contain 20-30% (v/v) of methanol or acetonitrile, give zones free of tailing. After storing in the fridge, zones of the compounds became pronouncedly tailed even if their solutions remain clear and free of precipitation, turbidity or opalescence. The tail (en)
Title	Preconditions for reasonable detection sensitivity and for zone symmetry in electrophoretic separations of cluster borane anions Preconditions for reasonable detection sensitivity and for zone symmetry in electrophoretic separations of cluster borane anions (en)
skos:prefLabel	Preconditions for reasonable detection sensitivity and for zone symmetry in electrophoretic separations of cluster borane anions Preconditions for reasonable detection sensitivity and for zone symmetry in electrophoretic separations of cluster borane anions (en)
skos:notation	RIV/61989592:15310/04:00009936!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA203/02/0023), P(IAA4031103), S, Z(AV0Z4031919), Z(AV0Z4032918)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Horáková, Hana
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	581229
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/04:00009936
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cluster boranes; chiral separations; capillary electrophoresis; beta-cyclodextrin (en)
http://linked.open.../riv/klicoveSlovo	chiral separations beta-cyclodextrin capillary electrophoresis cluster boranes
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[6DB3E05327D0]
http://linked.open...i/riv/nazevZdroje	Journal of Chromatography A: Symposium Volumes
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Development of new procedures for highly reliable analytical control of technologies,materials,food &environment & for med. diagnostic using modern instrumentat ystem phenomena in analytical capillary electrophoresis
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	1051
http://linked.open...iv/tvurceVysledku	Horáková, Hana Vespalec, Radim Grűner, Bohumír
http://linked.open...n/vavai/riv/zamer	Synthesis and structure of novel (inorganic) compounds, clusters and composites; mechanisms of conversion and transfer in systems involving inorganic substance Vyvinutí nových metod analytické chemie pro potřeby společenské praxe
issn	0021-9673
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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