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- E-ISSN 2093-8950
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Application of Fast Atom Bombardment Collision Induced Dissociation Tandem Mass Spectrometry for Structural Determination of Glycerolipids Isolated From Marine Sponge
Mass Spectrometry Letters / Mass Spectrometry Letters, (P)2233-4203; (E)2093-8950
2011, v.2 no.1, pp.8-11
https://doi.org/10.5478/MSL.2011.2.1.008
(Kyung Hee University)
(Kyung Hee University)
(Pusan National University)
(Kyung Hee University)
(Kyung Hee University)
(Pusan National University)
(Kyung Hee University)
Lee,
S., Hong,
J. Y., Jung,
J. H., &
Hong,
J.
(2011). Application of Fast Atom Bombardment Collision Induced Dissociation Tandem Mass Spectrometry for Structural Determination of Glycerolipids Isolated From Marine Sponge. Mass Spectrometry Letters, 2(1), 8-11, https://doi.org/10.5478/MSL.2011.2.1.008
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Abstract
Two types of glycerolipids [monoacylglycerols (MAG) and cyclitols] were isolated by reversed phase high-performanceliquid chromatography from the MeOH extracts of a marine sponge, and analyzed by fast atom bombardment mass spectrometry(FAB-MS) in positive-ion mode. FAB mass spectra of these compounds included protonated molecules [M+H]+ and abundantsodiated molecules [M+Na]+ from a mixture of m-NBA and NaI. The structures of these compounds were elucidated by FABcollisional-induced dissociation (CID)-tandem mass spectrometry. To find diagnostic ions for their characterization, these lipidswere analyzed by collision-induced dissociation (CID) B/E-linked scan. The CID B/E-linked scan of [M+H]+ and [M+Na]+ precursorions resulted in the formation of numerous characteristic product ions via a series of dissociative processes. The product ionsformed by charge-remote fragmentation (CRF) provided important information for the characterization of the acyl chain structuresubstituted at the glycerol backbone. Some of product ions were diagnostic for the presence of a glycerol backbone and acylchain structure, respectively.
- keywords
- Glycerolipids, Marine sponge, Collisional-induced dissociation (CID), Tandem mass spectrometry
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- Submission Date
- 2011-02-16
- Revised Date
- 2011-03-05
- Accepted Date
- 2011-03-05
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