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Photoionization of a protein isolated in vacuo

Abstract : Gas phase VUV single-photon photoionization spectroscopy of electrospray-produced multiply protonated cytochrome c protein ( 12 kDa) has been performed by means of coupling a linear quadrupole ion trap with a synchrotron beamline. The thresholds for the ionization of the 8+ and 11+ charge state precursors to radical 9+ and 12+ species were measured to be 12.75 +/- 0.10 and 13.51 +/- 0.10 eV, respectively.
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Aleksandar R. Milosavljević, Christophe Nicolas, Joël Lemaire, Christophe Dehon, Roland Thissen, et al.. Photoionization of a protein isolated in vacuo. Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2011, 13 (34), pp.15432 - 15436. ⟨10.1039/c1cp21211g⟩. ⟨hal-02644109⟩



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