Plasma ion mobility spectrometer

Details Plasma ion mobility spectrometer Plasma ion mobility spectrometer

2006-09-12

2006-09-12

Lee, John R. (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

C250S287000, C250S281000

Reexamination Certificate

active

07105808

ABSTRACT:
Ion mobility spectrometer. The spectrometer includes an enclosure for receiving a sample therewithin and an electron beam window admits an electron beam into the enclosure to ionize the sample in an ionization region. A shutter grid is spaced apart from the ionization region and means are provided for sample ion preconcentration upstream of the shutter grid. The ion preconcentration is effective to reduce space charge resulting in a lowered threshold detection level.

REFERENCES:
patent: 4680467 (1987-07-01), Bryson et al.
patent: 4855595 (1989-08-01), Blanchard
patent: 5021654 (1991-06-01), Campbell et al.
patent: 5256854 (1993-10-01), Bromberg et al.
patent: 5420424 (1995-05-01), Carnahan et al.
patent: 5534824 (1996-07-01), Nalos et al.
patent: 5572022 (1996-11-01), Schwartz et al.
patent: 5801379 (1998-09-01), Kouznetsov
patent: 5969349 (1999-10-01), Budovich et al.
patent: 6052401 (2000-04-01), Wieser et al.
patent: 6429426 (2002-08-01), Döring
patent: 6448568 (2002-09-01), Allen et al.
patent: 6586729 (2003-07-01), Döring
patent: 6812647 (2004-11-01), Cornelius
I. A. Buryakov, E. V. Krylov, E. G. Nazarov, U. K. Rasulev, “A New Method Of Separation Of Multi-Atomic Ions By Mobility At Atmospheric Pressure Using A High-Frequency Amplitude-Asymmetric Strong Electric Field,”Int. J. Mass Spectrom. Ion Processes128: 143-148 (1993).
H.-R. Döring, et al., “VIP Sources for Ion Mobility Spectrometry,”9thInternational Conference on Ion Mobility Spectrometry, ISIMS 2000 Programme, IJIMS 3(2000), Halifax, Nova Scotia, Canada, Aug. 13-16, 2000.
R.W. Purves, R. Guevremont, S. Day, C.W. Pipich, M.S. Matjaszczyk, “Mass Spectrometric Characterization Of A High-Field Asymmetric Waveform Ion Mobility Spectrometer,”Review of Scientific Instruments69 (12): 4094-4105 (1998).
G. A. Eiceman, E. G. Nazarov, and J. E. Rodriguez, J. A. Stone, “Analysis of a drift tube at ambient pressure: Models and precise measurements in ion mobility spectrometry”,Review of Scientific Instruments72(9): 3610-3621 (2001).

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