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Infrared Multiphoton Dissociation of Alkali Metal-Coordinated Oligosaccharides
- Source :
- Analytical Chemistry. 75:1590-1598
- Publication Year :
- 2003
- Publisher :
- American Chemical Society (ACS), 2003.
-
Abstract
- Infrared multiphoton dissociation (IRMPD) of alkali metal-coordinated oligosaccharides was obtained in a Fourier transform mass spectrometer. Fragmentation of the oligosaccharides was observed for Li+- and Na+-coordinated species. For larger alkali metal ions (K+, Rb+, and Cs+), the major products were the alkali metal ions. IRMPD experiments were performed on milk oligosaccharides, and the dissociation thresholds were determined. The threshold values were found to differ for the isomers. It is suggested that the threshold may be useful for differentiating isomeric compounds. Additionally, oligosaccharide alditols from biological samples were analyzed. Comparison of the collision-induced dissociation (CID) and IRMPD spectra of oligosaccharide alditols revealed that IRMPD could be used as a complementary method to obtain structural information.
- Subjects :
- chemistry.chemical_classification
Fourier Analysis
Milk, Human
Infrared Rays
Metals, Alkali
Molecular Sequence Data
Analytical chemistry
Oligosaccharides
Oligosaccharide
Photochemistry
Alkali metal
Mass spectrometry
Mass Spectrometry
Dissociation (chemistry)
Fourier transform spectroscopy
Analytical Chemistry
Matrix-assisted laser desorption/ionization
Carbohydrate Sequence
chemistry
Fragmentation (mass spectrometry)
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
Humans
Infrared multiphoton dissociation
Subjects
Details
- ISSN :
- 15206882 and 00032700
- Volume :
- 75
- Database :
- OpenAIRE
- Journal :
- Analytical Chemistry
- Accession number :
- edsair.doi.dedup.....8b915591f4e49963169d0fec452df842