Detection apparatus

Details Detection apparatus Detection apparatus

2011-04-26

2011-04-26

Berman, Jack I (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

Reexamination Certificate

active

07932489

ABSTRACT:
An ion mobility spectrometer has a pair of electrodes (13A) and (13B) midway along the drift chamber (7). A high field is applied between the electrodes (13A) and (13B) sufficient to modify (e.g. fragment) ions in the region of the electrodes such that they move at a different rate towards the collector plate (8) . This is used to modify the time of flight of selected ions or ion clusters and enable identification of ambiguous peaks on the IMS spectrum.

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patent: WO 00/79261 (2000-12-01), None
patent: WO 2004/097396 (2004-11-01), None

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