In‐beam ionization by alkali ion attachment applying a two‐filament ion source | Zendy

SchmelzeisenRedeker G. | Zendy; Giessmann U. | Zendy; Röllgen F. W. | Zendy

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In‐beam ionization by alkali ion attachment applying a two‐filament ion source

Author(s) -

SchmelzeisenRedeker G.,

Giessmann U.,

Röllgen F. W.

Publication year - 1985

Publication title -

organic mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 0030-493X

DOI - 10.1002/oms.1210200408

Subject(s) - alkali metal , sublimation (psychology) , ionization , ion , ion source , thermal ionization , chemistry , halide , ion beam , inorganic chemistry , analytical chemistry (journal) , electron ionization , chromatography , organic chemistry , psychology , psychotherapist

A simple ion source was constructed for in‐beam ionization by alkali ion attachment. A wire probe covered with sample was placed near an alkali ion emitter prepared from a mixture of silica gel and alkali halides. The ionization of various thermally labile compounds and of mixtures was investigated. Na + proved to be the most suitable alkali ion for cationization. For monosaccharides experiments revealed the elimination of water upon ionization by Li + attachment. The experimental set‐up was also examined for measuring the heat of sublimation of organic solids.

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