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Effects of pressure on ion-molecule reactions in the chemical ionization mass spectrometry of carboxylic acids

✍ Scribed by Truls Grønneberg

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
292 KB
Volume
12
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

The water elimination caused by bifunctional interaction in protonated dicarboxylic acids diminishes as sample pressure increases. This appears to be the result of stabilization of the protonated dixarboxylic acid by reversible formation of a protonted dimmer. The effect reaches a minimum for dicarboxylic acid with interfunctional chain length of 6–9 carbons where the free energy of activation probably also reaches a minimum. Self‐acetylation by water elimination from protonated dimers was observed for the monocarboxylic acids only.

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