Original title: Structural characterization of fatty acids with triple bond and unusual double bond positions by HPLC/APCI-MS2
Authors: Horká, Petra ; Vrkoslav, Vladimír ; Cvačka, Josef
Document type: Papers
Conference/Event: International Students Conference „Modern Analytical Chemistry“ /15./, Praha (CZ), 20190919
Year: 2019
Language: eng
Abstract: Fatty acid methyl esters (FAMEs) were analyzed by reversed-phase HPLC coupled to atmospheric pressure chemical ionization (APCI) mass spectrometry. Acetonitrile was used as mobile phase. The gas-phase reactions of acetonitrile and unsaturated FAMEs in the APCI source provided [M + C3H5N]+• adducts. Subsequent MS/MS analysis of these ions gave diagnostic fragments. The formation and fragmentation of the acetonitrile-related adducts were utilized for the structural characterization of FAME with isolated double bonds in (Z)-9,19-hexacosadienoic acid methyl ester, FAME with conjugated double bonds in (Z)-9,11-octadecadienoic acid methyl ester and FAME with a triple bond in 9-octadecynoic acid methyl ester.
Keywords: acetonitrile-related adducts; acetylenic lipids; mass spectrometry; multiple bond localization
Host item entry: Proceedings of the 15th International Students Conference „Modern Analytical Chemistry“, ISBN 978-80-7444-068-7

Institution: Institute of Organic Chemistry and Biochemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0302328

Permalink: http://www.nusl.cz/ntk/nusl-407954


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