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A combined electron impact, chemical ionization, field ionization and field desorption mass spectrometer source

H. H. Gierlich, A. Heindrichs, H. D. Beckey

Open publisher page 8 citations

Abstract

Detailed information about the construction and design of a combined ion source is given. By the use of an exchangeable ion exit slit for the ionization chamber the source is constructed to operate either at a source pressure of about 1 Torr for chemical ionization or at lower source pressures for electron impact ionization, field ionization or field desorption. The potentialities of this source are demonstrated by the mass spectra of a peptide as obtained with the different ionization modes.

About this research paper

What this paper is about

Detailed information about the construction and design of a combined ion source is given. By the use of an exchangeable ion exit slit for the ionization chamber the source is constructed to operate either at a source pressure of about 1 Torr for chemical ionization or at lower source pressures for electron impact ionization, field ionization or field desorption. The potentialities of this source are demonstrated by the mass spectra of a peptide as obtained with the different ionization modes.

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OpenAlex reports 8 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Detailed information about the construction and design of a combined ion source is given. By the use of an exchangeable ion exit slit for the ionization chamber the source is constructed to operate either at a source pressure of about 1 Torr for chemical ionization or at lower source pressures for electron impact ionization, field ionization or field desorption. The potentialities of this source are demonstrated by the mass spectra of a peptide as obtained with the different ionization modes.

Key concepts: Ion source, Electron ionization, Ionization, Atmospheric-pressure laser ionization, Ambient ionization, Field desorption, Thermal ionization, Chemical ionization

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