The identification of cyclic nucleotides from living systems using collision-induced dissociation of ions generated by fast atom bombardment mass spectrometry
โ Scribed by Eric E. Kingston; John H. Beynon; Russell P. Newton
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 711 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1076-5174
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โฆ Synopsis
Extracts derived from rat liver and Phaseolus leaves are shown, by collision-induced dissociation of [MH]+ ions
generated by fast atom bombardment mass spectrometry, to contain cytidine 3',5'-cyclic monophosphate and guanosine 3',5'-cyclic monophosphate respectively, and not the 2',3'-cyclic isomers. Interference peaks, expected to be common to all mass-analysed ion kinetic energy spectra of ions generated by the fast atom bombardment process from glycerol-based matrices are identified. It is shown that unequivocal identification of cytidine 3'J'-cyclic monophosphate can be made at the microgram level. Attempts to derive a quantitative procedure based on using different cyclic nucleotides as internal standards were unsuccessful due to the poor solubility of these compounds in the matrix system.
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