European Journal of Mass Spectrometry - Abstract of Letter: Intercluster chemistry of protonated and sodiated betaine dimers upon collision induced dissociation and electron induced dissociation

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European Journal of Mass Spectrometry
Volume 14 Issue 2, Pages 107–110 (2008)
doi: 10.1255/ejms.911

Letter: Intercluster chemistry of protonated and sodiated betaine dimers upon collision induced dissociation and electron induced dissociation

Linda Feketeová,^a–c George N. Khairallah^a–c and Richard A.J. O’Hair^a–c,*
^aSchool of Chemistry, University of Melbourne, Victoria 3010, Australia. E-mail: rohair@unimelb.edu.au
^bBio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Victoria 3010, Australia
^cARC Centre of Excellence for Free Radical Chemistry and Biotechnology

ABSTRACT:

The collision induced dissociation and electron induced dissociation spectra of the [2M + H]⁺ and [2M + Na]⁺ clusters of the zwitterionic amino acid, betaine (M), have been examined in a hybrid linear ion trap Fourier transform ion cyclotron resonance mass spectrometer. Intercluster reactions are observed in the collision induced dissociation spectra of [2M + H]⁺ and [2M + Na]⁺ and in the electron induced dissociation spectrum of [2M + H]⁺.

Keywords: electrospray ionization, tandem mass spectrometry, collision induced dissociation, electron induced dissociation, zwitterion

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