Charge stripping spectra

Figure Bl.7.7. Summary of the other collision based experiments possible with magnetic sector instruments (a) collision-mduced dissociation ionization (CIDI) records the CID mass spectrum of the neutral fragments accompanying imimolecular dissociation (b) charge stripping (CS) of the incident ion beam can be observed (c) charge reversal (CR) requires the ESA polarity to be opposite that of the magnet (d) neutiiralization-reionization (NR) probes the stability of transient neutrals fonned when ions are neutralized by collisions in the first collision cell. Neutrals surviving to be collisionally reionized in the second cell are recorded as recovery ions in the NR mass spectrum.

E/2 mass spectrum. Processes of the charge-stripping type ... 

Figure 7. Slow scan of the charge-strip-ping region in the MS/MS spectrum of 3-methylindole (upper) and 2-methylindole (lower)...

Mass spectrum obtained using a sector mass spectrometer in which the electric sector field E is set to half the value required to transmit the main ion-beam. This spectrum records the signal from doubly charged product ions of charge-stripping reactions. 

There is much current interest in the formation of small cumulene and heterocumulene anions and their neutrals. Two examples are mentioned. The anion N=CC=C-0 can be prepared by collisional activation of the precursor anion shown in Equation [18]. The corresponding radical is made by charge stripping. The positive-ion reionization spectrum of NC30 is shown in Figure 8. 

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