Počet záznamů: 1

Regioisomeric analysis of triacylglycerols using silver-ion liquid chromatography-atmospheric pressure chemical ionization mass spectrometry: Comparison of five different mass analyzers

SYSNO ASEP	0352178
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Regioisomeric analysis of triacylglycerols using silver-ion liquid chromatography-atmospheric pressure chemical ionization mass spectrometry: Comparison of five different mass analyzers
Tvůrce(i)	Holčapek, M. (CZ) Dvořáková, H. (CZ) Lísa, M. (CZ) Girón, A. J. (BE) Sandra, P. (BE) Cvačka, Josef (UOCHB-X)_{RID, ORCID}
Celkový počet autorů	6
Zdroj.dok.	Journal of Chromatography A. - : Elsevier - ISSN 0021-9673 Roč. 1217, č. 52 (2010), s. 8186-8194
Poč.str.	9 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	triacylglycerols ; silver-ion liquid chromatography ; regioisomer ; HPLC/MS ; APCI
Vědní obor RIV	CB - Analytická chemie, separace
CEP	GA203/09/0139 GA ČR - Grantová agentura ČR
CEZ	AV0Z40550506 - UOCHB-X (2005-2011)
UT WOS	000285899400014
DOI	10.1016/j.chroma.2010.10.064
Anotace	Silver-ion high-performance liquid chromatography (HPLC) coupled to atmospheric pressure chemical ionization mass spectrometry (APCI-MS) is used for the regioisomeric analysis of triacylglycerols (TGs). In total, 32 different regioisomeric doublets and 11 triplets are synthesized, separated by silver-ion HPLC using three serial coupled chromatographic columns giving a total length of 75 cm. The retention of TGs increases strongly with the double bond (DB) number and slightly for regioisomers having more DBs in sn-1/3 positions. DB positional isomers (linolenic vs. Gamma-linolenic acids) are also separated and their reverse retention order in two different mobile phases is demonstrated. APCI mass spectra of all separated regioisomers are measured on five different mass spectrometers: single quadrupole LC/MSD, triple quadrupole API 3000, ion trap Esquire 3000, quadrupole time-of-flight micrOTOF-Q and LTQ Orbitrap XL.
Pracoviště	Ústav organické chemie a biochemie
Kontakt	asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434
Rok sběru	2011

Počet záznamů: 1