Atmospheric pressure ionization type mass spectrometer

Details Atmospheric pressure ionization type mass spectrometer Atmospheric pressure ionization type mass spectrometer

1990-09-27

1991-09-24

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

With sample supply means

250281, 2502521, B01D 5944, H01J 4930

Patent

active

050515837

ABSTRACT:
An atmospheric pressure ionization type mass spectrometer comprises an ionization section opened to the atmosphere including a desolvation chamber, an ionization chamber, and a corona discharge needle for ionizing sample, a mass analysis section including a mass spectrometry, an intermediate pressure section in which cluster ions of the sample are accelerated by a drift voltage from the ionization section towards the mass analysis section. In advance of the mass spectroscopy, the moisture in the atmosphere is ionized into the water cluster ions. Such water cluster ions are used for calibrating a mass marker of the mass spectrometry.

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"Application of High-Performance Liquid Chromatography/Atmospheric Pressure Ionization Mass Spectrometry for the Analysis of Non-Volatile Compounds", Kato et al., BioMedical and Environmental Mass Spectrometry, vol. 16, pp. 331-334, 1988.

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