(1) Université Lyon 1, CNRS, LASIM UMR 5579, 43 bd. du 11 Novembre 1918, 69622 Villeurbanne Cedex, France;(2) Université Lyon 1, CNRS, Sciences Analytiques, UMR 5180, 43 bd. du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
Abstract:
Trapped doubly deprotonated peptides are subjected to electron detachment when irradiated by a UV light. Electron photodetachment
experiments as a function of the laser wavelength and laser fluence have been performed on two variants of angiotensin. The
electron detachment yield was used to monitor the excited electronic spectrum of the trapped ions. Furthermore, the electron
loss leads to the formation of radical ions. The radical recombination after collision activation is discussed.