Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.028 seconds
Futrell, J.; Laskin, J.; Denisov, E.; Barlow, S.; Tinkle, M.; Shukla, A.
SASP. Contributions to the 13. Symposium on atomic and surface physics and related topics2002
SASP. Contributions to the 13. Symposium on atomic and surface physics and related topics2002
AbstractAbstract
[en] A new FTMS research apparatus and first results are described. Reactant ions are prepared by MALDI or Electrospray ion generation, an ion funnel for efficient ion injection, a triple quadrupole mass selector and ion collisional cooling section and an energy selector preceding ion buncher and injector lenses. A high vacuum probe lock presents an orthogonally mounted surface to the ion beam inside the solenoid field. Reflected primary ions and secondary ions are trapped in a forth-order field-corrected Penning Trap and measured by conventional FT methods. This apparatus is our newest tool for investigating mechanisms of collisional activation and dissociation of ions. In this work we compare spectra obtained with carefully controlled multiple collision SORI excitation and single collisional excitation with a perfluoroalkyl self-assembled monolayer (FSAM). Using protonated model peptides and RRKM modeling of their dissociation we deduced accurate dissociation parameters and energy transfer functions for their collisional activation. Similarities and differences in results obtained in SORI and FSAM collisional activation are rationalized in the context of recent collisional dynamics and kinetics results. (author)
Primary Subject
Source
Scheier, P.; Maerk, T. (eds.); Universitaet Innsbruck (Austria); 353 p; 2002; p. 49; 13. Symposium on atomic and surface physics and related topics (SASP); Kitzbuehel (Austria); 17-23 Feb 2002
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue