About: Analysis of wax esters by silver-ion high-performance liquid chromatography-tandem mass spectrometry

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About: Analysis of wax esters by silver-ion high-performance liquid chromatography-tandem mass spectrometry Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.chroma.2013.06.031
Description	Wax esters (WEs), esters of long-chain fatty acids and long-chain alcohols, were analysed by Ag-HPLC/APCI-MS/MS. Two ChromSpher Lipids columns connected in series (a total length of 50 cm) and hexane-2-propanol-acetonitrile mobile phases were used to achieve good separation of the molecular species. The chromatographic behaviour of WEs was studied under optimised conditions: retention increased with the number of double bonds and with the temperature (15-35 degrees C); retention times were affected by the double-bond position, trans isomers eluted earlier than cis isomers, and the WEs were partially separated depending on the aliphatic-chain length. The WEs provided simple APCI spectra with [M+H](+) ions, the MS/MS spectra showed fragments, which allowed their identification. The method was applied for an analysis of the WE mixtures from jojoba oil and human hair and the results were compared with analogous data from an optimised RP-HPLC system. Wax esters (WEs), esters of long-chain fatty acids and long-chain alcohols, were analysed by Ag-HPLC/APCI-MS/MS. Two ChromSpher Lipids columns connected in series (a total length of 50 cm) and hexane-2-propanol-acetonitrile mobile phases were used to achieve good separation of the molecular species. The chromatographic behaviour of WEs was studied under optimised conditions: retention increased with the number of double bonds and with the temperature (15-35 degrees C); retention times were affected by the double-bond position, trans isomers eluted earlier than cis isomers, and the WEs were partially separated depending on the aliphatic-chain length. The WEs provided simple APCI spectra with [M+H](+) ions, the MS/MS spectra showed fragments, which allowed their identification. The method was applied for an analysis of the WE mixtures from jojoba oil and human hair and the results were compared with analogous data from an optimised RP-HPLC system. (en)
Title	Analysis of wax esters by silver-ion high-performance liquid chromatography-tandem mass spectrometry Analysis of wax esters by silver-ion high-performance liquid chromatography-tandem mass spectrometry (en)
skos:prefLabel	Analysis of wax esters by silver-ion high-performance liquid chromatography-tandem mass spectrometry Analysis of wax esters by silver-ion high-performance liquid chromatography-tandem mass spectrometry (en)
skos:notation	RIV/00216208:11310/13:10159115!RIV14-MSM-11310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA203/09/0139)
http://linked.open...iv/cisloPeriodika	August
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Háková, Martina
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 Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	60745
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/13:10159115
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Long-chain esters; Silver-ion liquid chromatography; Mass spectrometry; Wax esters; Human hair; Jojoba (en)
http://linked.open.../riv/klicoveSlovo	Human hair Jojoba Long-chain esters Silver-ion liquid chromatography Wax esters Mass spectrometry
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[2FD7FB9F8426]
http://linked.open...i/riv/nazevZdroje	Journal of Chromatography A
http://linked.open...in/vavai/riv/obor	CE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Complex lipidomic characterization of plant and animal tissues
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	1302
http://linked.open...iv/tvurceVysledku	Háková, Martina Cvacka, Josef Urbanova, Klara Vrkoslav, Vladimir
http://linked.open...ain/vavai/riv/wos	000322349700014
issn	0021-9673
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.chroma.2013.06.031
http://localhost/t...ganizacniJednotka	11310

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