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Chemical ionization desorption mass spectrometry of some quaternary ammonium salts
Author(s) -
Hasiak Bruno,
Ricart Guy,
Barbry Didier,
Couturier Daniel,
Hardy Michel
Publication year - 1981
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.1210160105
Subject(s) - chemical ionization , chemistry , reagent , desorption , mass spectrometry , ammonium , protonation , ion , ammonia , salt (chemistry) , ionization , inorganic chemistry , mass spectrum , ion source , atmospheric pressure chemical ionization , organic chemistry , chromatography , adsorption
The ammonia chemical ionization desorption spectra of N , N ‐dimethyl quaternary ammonium iodides in addition to high protonated molecular ion [M + H] + intensity, show signals for an ion radical composed of N ‐methyl abstracted salt cation and ammonia [C + NH 3 CH 3 ] +˙ . These ions corresponding to the cation +2 show increased importance in the chemical ionization mode, using the same reagent gas. The technique of chemical ionization desorption appears suitable for the analysis of salts, and thus for the determination of the molecular weight of both anion and cation.