Radiant energy – Ionic separation or analysis – Ion beam pulsing means with detector synchronizing means
Patent
1986-07-03
1989-08-08
Anderson, Bruce C.
Radiant energy
Ionic separation or analysis
Ion beam pulsing means with detector synchronizing means
250282, 250286, 250281, H01J 4940
Patent
active
048555959
ABSTRACT:
An ion mobility spectrometer for detecting ions and for facilitating controlled chemical reactions is described incorporating an inlet for carrier and sample gas, a reaction region having an ionization source and at least two electrodes for generating an electric field and a drift region having at least two electrodes for generating an electric field therein wherein each electrode is coupled to a power supply for placing a predetermined potential on the electrode and wherein each power supply is controlled by an electric field controller for providing a sequence of potentials on each electrode in the reaction region and drift region to control the motion and position of ions in the drift region. The invention overcomes the problem of detection sensitivity, detection selectivity and resolution between ions of similar mobility. The invention further overcomes the problem of facilitating certain chemical reactions by brings ions of opposite polarity together.
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Allied-Signal Inc.
Anderson Bruce C.
Guss Paul A.
Lamb Bruce L.
Trepp Robert M.
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