Vacuum ultraviolet action spectroscopy of polysaccharides.

Abstract : We studied the optical properties of gas-phase polysaccharides (maltose, maltotetraose, and maltohexaose) ions by action spectroscopy using the coupling between a quadrupole ion trap and a vacuum ultraviolet (VUV) beamline at the SOLEIL synchrotron radiation facility (France) in the 7 to 18 eV range. The spectra provide unique benchmarks for evaluation of theoretical data on electronic transitions of model carbohydrates in the VUV range. The effects of the nature of the charge held by polysaccharide ions on the relaxation processes were also explored. Finally the effect of isomerization of polysaccharides (with melezitose and raffinose) on their photofragmentation with VUV photons is presented.
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Submitted on : Monday, September 23, 2013 - 8:29:00 AM
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Quentin Enjalbert, Claire Brunet, Arnaud Vernier, Abdul-Rahman Allouche, Rodolphe Antoine, et al.. Vacuum ultraviolet action spectroscopy of polysaccharides.. Journal of The American Society for Mass Spectrometry, Springer Verlag (Germany), 2013, 24 (8), pp.1271-1279. ⟨10.1007/s13361-013-0657-2⟩. ⟨hal-00864641⟩



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