Electron transfer ion/ion reactions in a three-dimensional quadrupole ion trap: reactions of doubly and triply protonated peptides with SO2*-.

@article{Pitteri2005ElectronTI,
  title={Electron transfer ion/ion reactions in a three-dimensional quadrupole ion trap: reactions of doubly and triply protonated peptides with SO2*-.},
  author={Sharon J Pitteri and Paul A. Chrisman and Jason M. Hogan and Scott A McLuckey},
  journal={Analytical chemistry},
  year={2005},
  volume={77 6},
  pages={1831-9}
}
Ion-ion reactions between a variety of peptide cations (doubly and triply charged) and SO2 anions have been studied in a 3-D quadrupole ion trap, resulting in proton and electron transfer. Electron transfer dissociation (ETD) gives many c- and z-type fragments, resulting in extensive sequence coverage in the case of triply protonated peptides with SO2*-. For triply charged neurotensin, in which a direct comparison can be made between 3-D and linear ion trap results, abundances of ETD fragments… CONTINUE READING
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