Infrared multiphoton dissociation spectroscopic analysis of peptides and oligosaccharides by using Fourier transform ion cyclotron resonance mass spectrometry with a midinfrared free-electron laser
Article Abstract:
The fragmentation of peptides and oligosaccharides in the gas phase is investigated by using electrospray ionization Fourier transform ion cyclotron resonance (FTICR) mass spectrometry coupled with dissociation by a laser-cleavage infrared multiphoton dissociation (IRMPD) technique. The gas-phase IRMPD spectra of protonated peptides and two sodiated oligosaccharides are obtained over the IR scan range of 5.7-9.5 microm.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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White-light emission of amine-fictionalized organic/inorganic hybrids; emitting centers and recombination mechanisms
Article Abstract:
The recombination mechanisms and the chemical nature of the emitting centers subject to the white-light emission of sol-gel derived amine-functionalized hybrids lacking metal activator ions are discussed. Electron paramagnetic resonance data indicate that the specific photoluminescence (PL) mechanism subjacent to the component associated with the siliceous nanodomains involves oxygen-related defects.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Distinctive pressure effects on the association equilibrium in cyclodextrin group-inclusion complex as studied with electron paramagnetic resonance
Article Abstract:
The isomeric guest-host complexes formed by cyclic oligosaccharide cyclodextrin (CD) is studied. The changes in the equilibrium constants of these complexes are analyzed with the use of electron paramagnetic resonance (ERP).
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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