Apparatus and method for the control and/or analysis of charged

Details Apparatus and method for the control and/or analysis of charged Apparatus and method for the control and/or analysis of charged

1991-09-25

1992-06-09

Berman, Jack I.

Radiant energy

Ionic separation or analysis

Methods

250291, 250292, H01J 4944

Patent

active

051209578

ABSTRACT:
A method of analysis of a gaseous sample comprises the steps of introducing into a quistor a sample of ions characteristic of the gaseous sample, applying a potential to the electrodes of said quistor so that only one ionic species is stable in a trap of said quistor at any given instant, incrementing the potential applied to the electrodes of said quistor so that said ionic species becomes unstable and is ejected from said trap and determining the mass/charge ratio from the measurements of the parameters of said ion trap at the point of instability.

REFERENCES:
patent: 3527939 (1970-09-01), Dawson et al.
patent: 3986024 (1976-10-01), Radermacher
patent: 4540884 (1985-09-01), Stafford et al.
patent: 4650999 (1987-03-01), Fies et al.
patent: 4686367 (1987-08-01), Louris et al.
patent: 4736101 (1988-04-01), Syka et al.
patent: 4749860 (1988-06-01), Kelley et al.
patent: 4818869 (1989-04-01), Weber-Grabau

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