## Abstract In this research, the characteristic ions' abundance ratio between two isomers A and B in MS/MS mass spectra was defined as a parameter for discriminating diastereomers. Through this ratio, the discrimination of four pairs of cyclic peptide (CP) diastereomers was successfully achieved.
Peptides. Part XX. High resolution mass spectrometry of cyclic peptides
β Scribed by B.J. Millard
- Publisher
- Elsevier Science
- Year
- 1965
- Tongue
- French
- Weight
- 280 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Mass spectra of cyclic depsipeptides have
MASS Liverpool been reported, a ,a but only one cyclic peptide, namely cycle (Gly-L-Ala-D-Phe-Gly--D-Ala-L-Pbe),4 has apparently been examined.' This communication goes further by determinations of accurate masses of all the main fragments produced by electron impact on the same cyclic peptide and four others,
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