$$ {{\text{C}}_{\alpha }} - {\text{C}} $$ Bond Cleavage of the Peptide Backbone in MALDI In-Source Decay Using Salicylic Acid Derivative Matrices
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چکیده
منابع مشابه
In-Source Decay and Pseudo-MS3 of Peptide and Protein Ions Using Liquid AP-MALDI
Atmospheric pressure MALDI on a Q-Exactive instrument was optimized for in-source decay and pseudo-MS3. The dependence of AP-MALDI ISD on the MALDI liquid matrix was investigated for peptides and proteins. The liquid matrices enabled long-life ISD signal, and exhibited high fragment ion yield and signal stability. Extensive a-, b-, c-, y-, and z-type fragment series were observed depending on t...
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A Facile and Environmental Friendly Method for C=N Bond Cleavage of Imines Using p-Toluenesulfonic Acid in Solid State
A simple, efficient and clean procedure has been developed for the cleavage of imines C=N bond. Deprotection of imines to their parent carbonyl and amine compounds was achieved using p-toluenesulfonic acid in the solid state condition at 25-45 ˚C. The salient features of this methodology are shorter reaction times, cheap processing, high yields of product and easy availability of the catalyst. ...
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ژورنال
عنوان ژورنال: Journal of The American Society for Mass Spectrometry
سال: 2011
ISSN: 1044-0305,1879-1123
DOI: 10.1007/s13361-011-0131-y