Relative proton affinities of the four common basic L-α-amino acids. Analysis of metastable cluster ions from fast atom bombardment mass spectrometry
Abstract
Based on the analysis of the unimolecular reactions of metastable cluster ions from fast atom bombardment mass spectrometry, the relative proton affinities of four common amino acids are found to be in the order: Arg>His>Lys>Trp.