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Direct molecular weight determination of resin-bound oligopeptides using 252Cf plasma-desorption mass spectrometry
P A van Veelen1, U R Tjaden, J van der Greef
1Center for Bio-Pharmaceutical Sciences, Division of Analytical Chemistry, Lieden, The Netherlands.
Rapid Communications in Mass Spectrometry : RCM
|November 1, 1991
Abstract:
Plasma-desorption mass spectrometry is proved to be capable of the direct molecular weight determination of totally protected resin-bound oligopeptides. The molecular weight measured is the molecular weight of the fully protected oligopeptide including the molecular weight of the linker, which connects the oligopeptide and the polystyrene resin. This method makes it possible to check the success of (a step in) the synthesis of a peptide before its deprotection or cleaving from the resin. This can make it a strong tool in the analysis of resin-bound oligopeptides.