Mass spectrometer with an electrostatic ion trap

Details Mass spectrometer with an electrostatic ion trap Mass spectrometer with an electrostatic ion trap

2011-08-09

2011-08-09

Kim, Robert (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S281000, C250S282000, C250S287000, C250S288000, C250S290000, C250S291000, C250S292000

Reexamination Certificate

active

07994473

ABSTRACT:
In a mass spectrometer with an electrostatic ion trap, the electrostatic ion trap has an outer electrode with an ion-repelling electric potential applied to it and a plurality of inner electrodes with ion-attracting potentials applied to each inner electrode. The outer electrode and the inner electrodes are shaped and arranged in such a way that a harmonic electric potential is formed in one spatial direction and, perpendicular to this spatial direction, an electric potential is formed in which ions move in stable, radial trajectories.

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Jul. 31, 2008 Search Report for corresponding British application No. GB 2404784.

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