The mass spectrum was obtained for positive and negative secondary ions in a range of 0-100. 5. The degree of substitution of the gel was monitored by adding 0.05.-0.25 pCimL-' n-[l-'4C]-butanethiol (NEN) [14] or n-[I-"TI-butylamine (Hoechst AG) to the coupling mixture (as described in ref. [22]). T
The detection of a metastable ion-molecule reaction product using ion kinetic energy spectroscopy
β Scribed by J. H. Beynon; R. M. Caprioli; W. E. Baitinger; J. W. Amy
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 141 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1076-5174
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## Abstract The structures of the major adduct ions formed in ammonia chemical ionization of thirteen aliphatic and aromatic ketones have been studied by mass analysed ion kinetic energy spectrometry. The [M+NH~3~+H]^+^ ion is shown to have a protonated carbinolamine structure, [M+2NH~3~+H]^+^ to b