About: Characterization of polydimethylsiloxanes using an off-line combination of supercritical fluid chromatography with matrix-assisted laser desorption ionization mass spectrometry.

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About: Characterization of polydimethylsiloxanes using an off-line combination of supercritical fluid chromatography with matrix-assisted laser desorption ionization mass spectrometry. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Polydimethylsiloxanes in a commercial silicone oil sample were characterized by off-line combinations of supercritical fluid chromatography with two mass spectrometry techniques. SFC was used to separate polydimethylsiloxanes on micropacked capillary columns (lenght 150 mm, i.d. 320 .mu.m, packed by ODS 5 .mu.m particles). The fractions for the identification studies were obtained from an SFC run at defined time intervals, when the restrictor was pulled out from chromatographic flame ionization detector and inserted into a glass vial with acetone. For the identification of individual oligomers, GC-MS was used for low molecular ones and MALDI-TOF MS for higher ones, respectively. The range of determined molecular masses was from 474 to 5500 Da. Polydimethylsiloxanes in a commercial silicone oil sample were characterized by off-line combinations of supercritical fluid chromatography with two mass spectrometry techniques. SFC was used to separate polydimethylsiloxanes on micropacked capillary columns (lenght 150 mm, i.d. 320 .mu.m, packed by ODS 5 .mu.m particles). The fractions for the identification studies were obtained from an SFC run at defined time intervals, when the restrictor was pulled out from chromatographic flame ionization detector and inserted into a glass vial with acetone. For the identification of individual oligomers, GC-MS was used for low molecular ones and MALDI-TOF MS for higher ones, respectively. The range of determined molecular masses was from 474 to 5500 Da. (en)
Title	Characterization of polydimethylsiloxanes using an off-line combination of supercritical fluid chromatography with matrix-assisted laser desorption ionization mass spectrometry. Characterization of polydimethylsiloxanes using an off-line combination of supercritical fluid chromatography with matrix-assisted laser desorption ionization mass spectrometry. (en)
skos:prefLabel	Characterization of polydimethylsiloxanes using an off-line combination of supercritical fluid chromatography with matrix-assisted laser desorption ionization mass spectrometry. Characterization of polydimethylsiloxanes using an off-line combination of supercritical fluid chromatography with matrix-assisted laser desorption ionization mass spectrometry. (en)
skos:notation	RIV/68081715:_____/00:25200024!RIV/2003/AV0/A25003/N
http://linked.open.../vavai/riv/strany	502;506
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/97/P103), P(IAA4031802), Z(AV0Z4031919)
http://linked.open...iv/cisloPeriodika	7/8
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Chmelík, Josef Vejrosta, Jiří Zdráhal, Zbyněk Planeta, Josef
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	Ústav analytické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	706592
http://linked.open...ai/riv/idVysledku	RIV/68081715:_____/00:25200024
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	N/A (en)
http://linked.open.../riv/klicoveSlovo	N/A
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[CC4C51F7F549]
http://linked.open...i/riv/nazevZdroje	Journal of High Resolution Chromatography
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	New extraction techniques of organic pollutant analysis in solid matrices Preparation of highly effective and selective micropacked columns for SFC and HPLC with use of supercritical carbon dioxide
http://linked.open...UplatneniVysledku	2000
http://linked.open...v/svazekPeriodika	23
http://linked.open...iv/tvurceVysledku	Konečný, P. Zdráhal, Zbyněk Chmelík, Josef Planeta, Josef Vejrosta, Jiří Chmelík jr., J.
http://linked.open...n/vavai/riv/zamer	Vyvinutí nových metod analytické chemie pro potřeby společenské praxe
issn	0935-6304
number of pages	5 (xsd:int)

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