Electron capture negative ion mass spectra of some typical matrix-assisted laser desorption/ionization matrices

2002 ◽  
Vol 16 (18) ◽  
pp. 1760-1765 ◽  
Author(s):  
N. L. Asfandiarov ◽  
S. A. Pshenichnyuk ◽  
A. I. Fokin ◽  
V. G. Lukin ◽  
V. S. Fal'ko
Keyword(s):  
Electron Capture ◽  
Mass Spectra ◽  
Laser Desorption ◽  
Negative Ion ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

Non-linear photoelectron effect contributes to the formation of negative matrix ions in UV-MALDI

2016 ◽  
Vol 18 (29) ◽  
pp. 19574-19587 ◽  
Author(s):  
E. Alonso ◽  
R. Zenobi
Keyword(s):  
Electron Capture ◽  
Laser Desorption ◽  
Negative Ion ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Ion Formation ◽  
Positive Ions ◽  
Non Linear ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

The mechanism of negative ion formation in matrix-assisted laser desorption/ionization (MALDI) is less well understood than that of positive ions: electron capture, disproportionation, and liberation of negatively charged sample molecules or clusters have been proposed to produce the initial anions in MALDI.

Do matrix-assisted laser desorption/ionization mass spectra reflect solution-phase formation of cyclodextrin inclusion complexes?

The Analyst ◽  
2000 ◽  
Vol 125 (5) ◽  
pp. 849-854 ◽  
Author(s):  
Edda Lehmann ◽  
François Diederich ◽  
Renato Zenobi ◽  
Bekir Salih ◽  
Marcos Gómez-López
Keyword(s):  
Mass Spectra ◽  
Laser Desorption ◽  
Solution Phase ◽  
Ionization Mass ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Cyclodextrin Inclusion Complexes ◽  
Cyclodextrin Inclusion ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption
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