Mass spectrometer

Radiant energy – Ionic separation or analysis – Methods

Reexamination Certificate

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Details

C250S281000, C250S282000, C250S286000, C250S287000, C250S290000

Reexamination Certificate

active

07622711

ABSTRACT:
A mass spectrometer is disclosed comprising an ion mobility spectrometer or separator (3) arranged upstream of a collision or fragmentation cell (5). Ions are separated according to their ion mobility within the ion mobility spectrometer or separator (3). The kinetic energy of the ions exiting the ion mobility spectrometer or separator (3) is increased substantially linearly with time in order to optimize the fragmentation energy of ions as they enter the collision or fragmentation cell (5).

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