Electrospraying method for mass spectrometric analysis

Details Electrospraying method for mass spectrometric analysis Electrospraying method for mass spectrometric analysis

1995-03-10

1997-03-04

Berman, Jack I.

Radiant energy

Ionic separation or analysis

With sample supply means

250281, H01J 4910

Patent

active

056082177

ABSTRACT:
A method is provided for analyzing analyte ions in a liquid using a spectrometer incorporating an ion trap, using a capillary nozzle adjacent an inlet aperture for the ion trap. The liquid is electrosprayed from the capillary nozzle by generating an electric field at the nozzle to ionise the said analyte and produce a beam of charged spray particles, and the beam of charged particles is injected into the ion trap through the inlet aperture. The pressure within the capillary is such that flow of the liquid through the capillary occurs only in the presence of the said electric field, and flow of ions into the ion trap is controlled by varying the electric field.

REFERENCES:
patent: 4531056 (1985-07-01), Labowsky et al.
patent: 4861988 (1989-08-01), Henion et al.
patent: 4885076 (1989-12-01), Smith et al.
patent: 5115131 (1992-05-01), Jorgenson et al.
patent: 5306910 (1994-04-01), Jarrell et al.
patent: 5504329 (1996-04-01), Mann et al.

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