Ion trap, mass spectrometer, and ion mobility analyzer

Details Ion trap, mass spectrometer, and ion mobility analyzer Ion trap, mass spectrometer, and ion mobility analyzer

2011-01-25

2011-01-25

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S288000, C250S292000, C250S290000

Reexamination Certificate

active

07875848

ABSTRACT:
A compact, low-cost, and simple ion trap capable of operating at a low vacuum level is provided along with technology for utilizing that ion trap to perform mass spectroscopy and analyzing ion mobility without a drop in measurement accuracy. Ions are trapped in a one dimensional potential formed by a potential comprised of a direct current voltage and a potential comprised of an alternating current voltage. The trapped ions are made to collide with an electrode by changing at least the applied direct current voltage or alternating current voltage, and are detected as an electrical current value.

REFERENCES:
patent: 2939952 (1960-06-01), Paul et al.
patent: 6683301 (2004-01-01), Whitehouse et al.
patent: 6872941 (2005-03-01), Whitehouse et al.
patent: 2009/0001265 (2009-01-01), Baba et al.
R. E. March et al., Quadrupole Storage Mass Spectrometry, ISBN 0-471-857947.
Raymond E. March, et al., Quadrupole Ion Trap Mass Spectrometry, ISBN 0471-488887.

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