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Statements

Subject Item
n2:RIV%2F61388963%3A_____%2F10%3A00345947%21RIV11-GA0-61388963
rdf:type
n7:Vysledek skos:Concept
dcterms:description
High chromatographic resolution of wax esters (WEs) was achieved by non-aqueous reversed-phase liquid chromatography on a Nova-Pak C18 column by optimizing the acetonitrile/ethyl acetate mobile phase gradient. The retention behaviour of saturated, unsaturated and methyl-branched WEs was studied in this chromatographic system. The analytes were detected by atmospheric pressure chemical ionization mass spectrometry (APCI-MS). WEs provided simple full-scan spectra with abundant protonated molecules and low-intensity fragments. Collision-induced dissociation (CID) promoted identification of the WE molecular species. The responses of WEs were found to be dependent on the number of double bonds and on the alkyl-chain length. The HPLC/APCIMS was applied for the analysis of the WEs isolated from honeycomb beeswax, jojoba oil and human hair. Good agreement between reported results and the literature data was achieved, with several novel polyunsaturated WEs also being found. High chromatographic resolution of wax esters (WEs) was achieved by non-aqueous reversed-phase liquid chromatography on a Nova-Pak C18 column by optimizing the acetonitrile/ethyl acetate mobile phase gradient. The retention behaviour of saturated, unsaturated and methyl-branched WEs was studied in this chromatographic system. The analytes were detected by atmospheric pressure chemical ionization mass spectrometry (APCI-MS). WEs provided simple full-scan spectra with abundant protonated molecules and low-intensity fragments. Collision-induced dissociation (CID) promoted identification of the WE molecular species. The responses of WEs were found to be dependent on the number of double bonds and on the alkyl-chain length. The HPLC/APCIMS was applied for the analysis of the WEs isolated from honeycomb beeswax, jojoba oil and human hair. Good agreement between reported results and the literature data was achieved, with several novel polyunsaturated WEs also being found.
dcterms:title
Analysis of wax ester molecular species by high performance liquid chromatography/atmospheric pressure chemical ionisation mass spectrometry Analysis of wax ester molecular species by high performance liquid chromatography/atmospheric pressure chemical ionisation mass spectrometry
skos:prefLabel
Analysis of wax ester molecular species by high performance liquid chromatography/atmospheric pressure chemical ionisation mass spectrometry Analysis of wax ester molecular species by high performance liquid chromatography/atmospheric pressure chemical ionisation mass spectrometry
skos:notation
RIV/61388963:_____/10:00345947!RIV11-GA0-61388963
n3:aktivita
n14:Z n14:P
n3:aktivity
P(GA203/09/0139), Z(AV0Z40550506)
n3:cisloPeriodika
25
n3:dodaniDat
n11:2011
n3:domaciTvurceVysledku
n10:3749134 n10:1551167 n10:8907129
n3:druhVysledku
n16:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
246531
n3:idVysledku
RIV/61388963:_____/10:00345947
n3:jazykVysledku
n5:eng
n3:klicovaSlova
Beeswax; Branched esters; Human hair; Jojoba; Mass spectrometry
n3:klicoveSlovo
n9:Mass%20spectrometry n9:Human%20hair n9:Beeswax n9:Branched%20esters n9:Jojoba
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[9DA4D57A2A5B]
n3:nazevZdroje
Journal of Chromatography A
n3:obor
n18:CC
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n6:GA203%2F09%2F0139
n3:rokUplatneniVysledku
n11:2010
n3:svazekPeriodika
1217
n3:tvurceVysledku
Cvačka, Josef Urbanová, Klára Vrkoslav, Vladimír
n3:wos
000278779000027
n3:zamer
n17:AV0Z40550506
s:issn
0021-9673
s:numberOfPages
11