Laser photodissociation probe for ion tomography studies in a quadrupole ion-trap mass spectrometer

Autor: J.E.P. Syka, R. G. Cooks, N.S. Nogar, P. H. Hemberger, Jon D. Williams
Rok vydání: 1992
Předmět:
Zdroj: Chemical Physics Letters. 191:405-410
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85400-5
Popis: Ion tomography studies based on spatially resolved photodissociation of benzoyl cation (C 6 H 5 CO + ) in an ion-trap mass spectrometer are presented. Changes in radially averaged parent ion distributions are observed as a function of applied RF potential during photodissociation and under conditions of resonant excitation with a supplementary ac voltage. This work also demonstrates stabilization of ion trajectories by helium buffer gas when the trap is used in the mass-selective instability mode of operation.
Databáze: OpenAIRE