Tris(2,4,6‐trimethoxyphenyl)methyl carbenium ion for charge derivatization of amines and amino acids
Journal of Mass Spectrometry2007Vol. 43(5), pp. 623–627
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Abstract
Primary and secondary alkyl amines substitute readily one of the para-methoxy substituents of tris(2,4,6-trimethoxyphenyl)methyl carbenium ion. With this rapid process, the preparation of permanently charged positive derivatives of amines, amino acids and small C-protected peptides is achieved. This is utilized here to facilitate the matrix assisted laser desorption ionization-time-of-flight (MALDI-TOF) analysis of these compounds.
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