Mass spectrometer

Details Mass spectrometer Mass spectrometer

1993-02-02

1994-03-29

Dzierzynski, Paul M.

Radiant energy

Ionic separation or analysis

With sample supply means

250281, H01J 4910

Patent

active

052987442

ABSTRACT:
Ions generated by an ES ion supply are introduced into a mass spectrometer portion through a small hole in a second electrode after passing through a small hole in a heated first electrode, and are analyzed by a mass spectrometer. Corresponding to heating of the first electrode, a length of the small hole in the first electrode is determined to a predetermined adequate value.

REFERENCES:
patent: 4016421 (1977-04-01), Hull et al.
patent: 4531056 (1985-07-01), Labowsky et al.
patent: 4935624 (1990-06-01), Henion et al.
patent: 4977320 (1990-12-01), Chaudhury et al.
patent: 5130538 (1992-07-01), Fenn et al.
patent: 5235186 (1993-08-01), Robins
Sakairi et al "Characteristic of a Liquid Chromatograph/Atmospheric Pressure Ionization Mass Spectrometer" Anal. Chem. 1988, 60, pp. 774-780.
Huang et al. "Atmosphere Pressure Ionization Mass Spectrometry" Anal. Chem 1990, vol. 62, pp. 713A-725A.

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