Negative ion FAB mass spectroscopy of some ribose alkylated 5'-UMP derivatives
Kaniz Fizza Azhar1, M Qudrat-E-Khuda, Khursheed Alam Khan
1PCSIR Laboratories Complex, Karachi--75280, Pakistan.
Abstract:
Characteristic fragment ions obtained in Fast atom bombardment (FAB) mass spectroscopy of ribose alkylated Uridine 5'-monophosphate (5'-UMP) derivatives in negative ion mode are described. All the compounds examined exhibited either [M]- or quasimolecular ion [M - H]- the fragmentations can be used to characterize these nucleotides.
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