Fast atom bombardment and tandem mass spectrometry for determing iso- and anteiso-fatty acids

Nancy J. Jensen; Michael L. Gross

doi:10.1007/BF02535702

Fast atom bombardment and tandem mass spectrometry for determing iso- and anteiso-fatty acids

Nancy J. Jensen, Michael L. Gross

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Abstract

Branched fatty acids can be distinguished from isomeric straight chain fatty acids by collisionally activating the (M-H)^- ions desorbed by using fast atom bombardment (FAB) mass spectrometry (MS). In particular, an acid with iso- fatty branching can be readily distinguished from one containing anteiso- branching; the latter undergoes loss of the elements of CH₄ and C₂H₆ but not C₃H₈. These decompositions are another example of remote charge site fragmentation. Mixtures of homologs and isomers can be investigated by using the combination of FAB and tandem mass spectrometry (MS-MS).

Original language	English
Pages (from-to)	362-365
Number of pages	4
Journal	Lipids
Volume	21
Issue number	5
DOIs	https://doi.org/10.1007/BF02535702
State	Published - May 1986

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title = "Fast atom bombardment and tandem mass spectrometry for determing iso- and anteiso-fatty acids",

abstract = "Branched fatty acids can be distinguished from isomeric straight chain fatty acids by collisionally activating the (M-H)- ions desorbed by using fast atom bombardment (FAB) mass spectrometry (MS). In particular, an acid with iso- fatty branching can be readily distinguished from one containing anteiso- branching; the latter undergoes loss of the elements of CH4 and C2H6 but not C3H8. These decompositions are another example of remote charge site fragmentation. Mixtures of homologs and isomers can be investigated by using the combination of FAB and tandem mass spectrometry (MS-MS).",

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AU - Gross, Michael L.

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N2 - Branched fatty acids can be distinguished from isomeric straight chain fatty acids by collisionally activating the (M-H)- ions desorbed by using fast atom bombardment (FAB) mass spectrometry (MS). In particular, an acid with iso- fatty branching can be readily distinguished from one containing anteiso- branching; the latter undergoes loss of the elements of CH4 and C2H6 but not C3H8. These decompositions are another example of remote charge site fragmentation. Mixtures of homologs and isomers can be investigated by using the combination of FAB and tandem mass spectrometry (MS-MS).

AB - Branched fatty acids can be distinguished from isomeric straight chain fatty acids by collisionally activating the (M-H)- ions desorbed by using fast atom bombardment (FAB) mass spectrometry (MS). In particular, an acid with iso- fatty branching can be readily distinguished from one containing anteiso- branching; the latter undergoes loss of the elements of CH4 and C2H6 but not C3H8. These decompositions are another example of remote charge site fragmentation. Mixtures of homologs and isomers can be investigated by using the combination of FAB and tandem mass spectrometry (MS-MS).

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U2 - 10.1007/BF02535702

DO - 10.1007/BF02535702

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EP - 365

JO - Lipids

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IS - 5

ER -

Fast atom bombardment and tandem mass spectrometry for determing iso- and anteiso-fatty acids

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