Identification of the facile gas-phase cleavage of the Asp-Pro and Asp-Xxx peptide bonds in matrix-assisted laser desorption time-of-flight mass spectrometry

1993 ◽  
Vol 65 (21) ◽  
pp. 3015-3023 ◽  
Author(s):  
Wen. Yu ◽  
James E. Vath ◽  
Michael C. Huberty ◽  
Stephen A. Martin
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Time Of Flight ◽  
Laser Desorption ◽  
Peptide Bonds ◽  
Flight Mass Spectrometry ◽  
Desorption Time ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry of Dextran and Dextrin Derivatives

2003 ◽  
Vol 9 (1) ◽  
pp. 61-70 ◽  
Author(s):  
Sajid Bashir ◽  
Peter J. Derrick ◽  
Peter Critchley ◽  
Paul J. Gates ◽  
James Staunton
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Time Of Flight ◽  
Laser Desorption ◽  
Laser Desorption Ionization ◽  
Ionization Time ◽  
Desorption Ionization ◽  
Flight Mass Spectrometry ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

Application of matrix-assisted laser desorption/ionization (MALDI) to the analysis of dextran and dextrin derivatives, specifically glucose saccharides, by time-of-flight (TOF) mass spectrometry is reported. MALDI-TOF analysis was carried out on alpha-, beta-and gamma-cyclodextrin, two O-methylated beta-cyclodextrins of differing degrees of substitution (DS) and dextrans (a linear glucose saccharide), as pure and doped solutions and as mixtures of two or more of these analytes. Doping was carried out with trace amounts of inorganic salts. The purpose of the analysis of the cyclodextrins was to determine whether they would form inclusion complexes with the various added cations, or whether less specific cation addition/exchange was occurring either prior to desorption or in the gas phase.

Performance of matrix-assisted laser desorption-time of flight mass spectrometry for identification of clinical yeast isolates

Mycoses ◽  
2012 ◽  
Vol 56 (3) ◽  
pp. 229-235 ◽  
Author(s):  
Flemming S. Rosenvinge ◽  
Esad Dzajic ◽  
Elisa Knudsen ◽  
Sanne Malig ◽  
Line B. Andersen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Time Of Flight ◽  
Laser Desorption ◽  
Flight Mass Spectrometry ◽  
Desorption Time ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption
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