Differentiation of 6-C- and 8-C-glycosidic flavonoids by positive ion fast atom bombardment and tandem mass spectrometry

1992 ◽  
Vol 21 (4) ◽  
pp. 213-221 ◽  
Author(s):  
Q. M. Li ◽  
H. Van den Heuvel ◽  
L. Dillen ◽  
M. Claeys
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Fast Atom Bombardment ◽  
Tandem Mass ◽  
Positive Ion

scholarly journals Analysis of the Core Oligosaccharide ofAeromonas hydrophila(Chemotype III) Lipopolysaccharide Using Fast Atom Bombardment, Electrospray and Low Energy Tandem Mass Spectrometry

1994 ◽  
Vol 12 (2) ◽  
pp. 55-68 ◽  
Author(s):  
Joseph Banoub ◽  
Emmanuel Gentip ◽  
Derek H. Shaw
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Fast Atom Bombardment ◽  
Low Energy ◽  
Tandem Mass ◽  
Core Oligosaccharide ◽  
Molecular Ion ◽  
The Core ◽  
Fragment Ions ◽  
Positive Ion

Fast-atom bombardment mass spectrometry (FAB-MS) was employed for the structural analysis of the core oligosaccharide ofAeromonas hydrophila(Chemotype III) lipopolysaccharide. Positive ion FAB-MS of the underivatized core oligosaccharide gave the protonated molecular ion, confrrming the correct composition in terms of hexoses, heptoses and Kdo which was present as a bicyclic furanosidic lactone. Negative ion FAB-MS gave the deprotonated molecular ion and fragment ions which were derived from more than two cleavage events with charge retention at the reducing and non-reducing terminals. Positive ion F AB-MS of the permethylated core oligosaccharide afforded fragment ions consistent with the defined sequence and branching patterns of the sugar constituents. The electrospray mass spectrum (ESMS) in the positive ion mode of the underivatized core oligosaccharide afforded the protonated molecular ion in the singly and doubly charged forms. Low energy collision-activated dissociation tandem mass spectrometry (CAD MS/MS) analysis of the protonated molecular ion [M+2H]+2provided additional structural data. ESMS of the permethylated and N-acetylated permethylated core oligosaccharides provided useful structural indices and afforded a characteristic pattern for fragmentions resulting from the opening of the methylated bicyclic Kdo furanosidic 1,7- lactone, which was similar to that obtained in the corresponding FAB-MS.

Coaxial continuous flow fast atom bombardment in conjunction with tandem mass spectrometry for the analysis of biomolecules

1989 ◽  
Vol 61 (22) ◽  
pp. 2504-2511 ◽  
Author(s):  
Leesa J. Deterding ◽  
M. Arthur. Moseley ◽  
Kenneth B. Tomer ◽  
James W. Jorgenson
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Continuous Flow ◽  
Fast Atom Bombardment ◽  
Tandem Mass

Determination of Mildronate in Human Plasma and Urine by UPLC–Positive Ion Electrospray Tandem Mass Spectrometry

2011 ◽  
Vol 73 (7-8) ◽  
pp. 659-665 ◽  
Author(s):  
Li-Jing Cai ◽  
Jun Zhang ◽  
Wen-Xing Peng ◽  
Rong-Hua Zhu ◽  
Jian Yang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Human Plasma ◽  
Tandem Mass ◽  
Electrospray Tandem Mass Spectrometry ◽  
Human Plasma And Urine ◽  
Positive Ion

scholarly journals Fast atom bombardment mass spectra of the .BETA.-blocker nipradilol with nitrate ester group-tandem mass spectrometry (MS/MS) and B/E constant linked scanning.

1990 ◽  
Vol 38 (12) ◽  
pp. 3389-3394 ◽  
Author(s):  
Michiaki YONEDA ◽  
Kazuo TSUJIMOTO ◽  
Mamoru OHASHI ◽  
Masami SHIRATSUCHI ◽  
Yasushi OHKAWA ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Beta Blocker ◽  
Mass Spectra ◽  
Fast Atom Bombardment ◽  
Ester Group ◽  
Tandem Mass ◽  
Nitrate Ester
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