BOUNDARY-EFFECT ACTIVATED DISSOCIATION IN ION-TRAP TANDEM MASS-SPECTROMETRY

The potential of boundary-effect activated dissociation (BAD) in ion t rap tandem mass spectrometry (MS/MS) is discussed. Several classes of compounds were investigated and the BAD product ion tandem mass spectr a were compared with those from collisionally activated dissociation ( CAD) where an auxilliary r.f. 'tickle' voltage is used. The energy dep osition in BAD MS/MS is generally lower than that for optimized CAD, b ut the experiments are easier to perform. An example of the BAD MS/MS of C-10 alkylbenzenes and benzothiophene in diesel fuel using gas chro matographic introduction and predicted r.f. and d.c. voltages is prese nted.