Mass spectra of trimethylsilyl derivatives of some amino-acids and peptides

Abstract

Mass spectra of trimethylsilyl derivatives of some amino-acids and di- and tri-peptides contain very easily recognisable M⁺ and M⁺– 15 peaks, thus making these derivatives useful for molecular-weight determinations on very small amounts of unusual amino-acids and small peptides, or in the analysis of mixtures of such compounds.