Novel anions that contain one molecule each of C, and the polycyclic aromatic hydrocarbon coronene are generated in the gas phase by electron attachment desorption chemical ionization. Collision-induced dissociation reveals that these cluster ions are loosely bonded. Fragmentation of the mass-select
Proton affinities of polyglycines assessed by using the kinetic method
β Scribed by Zhuchun Wu; Catherine Fenselau
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 380 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1044-0305
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β¦ Synopsis
The proton affinities of a series of peptides, chosen to show the effects of chain length, were measured by the kinetic method using amines as standard reference bases. Proton affinities of polyglycines with residues ranging from 2 to 10 were measured and the values were found to increase as the number of residues increases.
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