Ion counter

Details Ion counter Ion counter

2008-05-13

2008-05-13

Berman, Jack (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

C250S281000, C250S282000

Reexamination Certificate

active

10531236

ABSTRACT:
Ions in a steady flow sample are counted by colliding the ions in a mixing chamber with a numerical excess of uncharged or neutral aerosol particles, suitably glycerol, entrained in air, to transfer respective charges from the ions to charge individual aerosol particles and passing the gases through a separating chamber subjected to an electric field to direct the charged aerosol particles to impinge upon an optical particle counter.

REFERENCES:
patent: 4378499 (1983-03-01), Spangler et al.
patent: 4383171 (1983-05-01), Sinha et al.
patent: 4588889 (1986-05-01), Naito
patent: 5097124 (1992-03-01), Devienne
patent: 5128543 (1992-07-01), Reed et al.
patent: 5621208 (1997-04-01), Pourprix
patent: 5811820 (1998-09-01), Kirchner et al.
patent: 6573510 (2003-06-01), Vella
patent: 6619063 (2003-09-01), Brumett
patent: 6895339 (2005-05-01), Pusterla et al.
patent: 7081619 (2006-07-01), Bashkirov et al.
patent: 2005/0109929 (2005-05-01), Bashkirov et al.
patent: 0 692 712 (1996-01-01), None
patent: 61093544 (1986-05-01), None
patent: 61239186 (1986-10-01), None
patent: 2162251 (1990-06-01), None
Zhang, et al. “Development of an electrostatic ion guide in chemical ionization mass spectrometry,” Review of Scientific Instruments, vol. 69, No. 11, 1998 p. 4002-4003.
Bassi, et al. “Ion-molecule-reaction mass spectrometer for on-line gas analysis,” J. Vac. Sci. Technol. B 16(1) Jan./Feb. 1998, pp. 114-122.
G.A. Eiceman, Ion-mobility spectrometry as a fast monitor of chemical composition, Trends In Analytical Chemistry, 2002, pp. 259-275, vol. 21, No. 4, Elsevier Science B.V.

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