Field desorption mass spectrometry of quaternary ammonium salts: Cluster ion formation
β Scribed by H. J. Veith
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- English
- Weight
- 239 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1076-5174
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π SIMILAR VOLUMES
Intermolecular alkyl transfer occurs during field desorption of quaternary ammoniohexanoates, resulting in mass spectra containing structurally diagnostic adduct ions. Methyl, ethyl and propyl groups attached to nitrogen readily undergo intermolecular transfer to give [M+CH,]', [M+C,H,]+ and [M+C,H,
A series of sodium cluster ions, such as Na+(NaCl),, Na'(HCOONa), and Na+(HCOONa),,(CH,C00Na)n2, were observed in electrospray mass spectrometry. These results support the electrophoretic separation mechanism for excess ions at droplet surface, and the charged residue model for gas phase ion formati