Excitation of Reagent Molecules Withn a RF Confined Ion Guide or Ion Trap to Perform Ion Molecule, Ion Radical or Ion-Ion Interaction Experiments

摘要

A mass spectrometer is disclosed comprising an RF ion guide or ion trap and a device arranged and adapted to supply a reagent gas within the RF ion guide or ion trap. The mass spectrometer further comprises a photo-ionisation device and a control system arranged and adapted: (i) to cause first ions to fragment or dissociate within the RF ion guide or ion trap to form second ions and neutral molecules; and (ii) to cause the photo-ionisation device to photo-ionise and/or photo-excite the reagent gas to form reagent ions, excited species or radical species. The reagent ions, excited species or radical species interact with at least some of the neutral molecules located within the RF ion guide or ion trap to form analyte ions.

主权项

1. A mass spectrometer comprising:
an RF ion guide or ion trap; a device arranged and adapted to supply a reagent gas within said RF ion guide or ion trap; a photo-ionisation device; and a control system arranged and adapted: (i) to cause first ions to fragment or dissociate within said RF ion guide or ion trap to form second ions and neutral molecules; and (ii) to cause said photo-ionisation device to photo-ionise or photo-excite said reagent gas to form reagent ions, excited species or radical species, wherein said reagent ions, excited species or radical species interact with at least some of said neutral molecules located within said RF ion guide or ion trap to form analyte ions.