Stabilities of fast atom bombardment desorbed alkali metal adducts of pyrimidine molecules

1990 ◽  
Vol 98 (3) ◽  
pp. 269-283 ◽  
Author(s):  
Richard B. Cole ◽  
Jean-Claude Tabet ◽  
Jean-Claude Blais
Keyword(s):  
Alkali Metal ◽  
Fast Atom Bombardment ◽  
Metal Adducts

Gas-phase fragmentation of metal adducts of alkali-metal oxalate salts

2014 ◽  
Vol 49 (3) ◽  
pp. 195-200 ◽  
Author(s):  
Robert D. Hale ◽  
Chang-Ching Chan ◽  
Carl S. Weisbecker ◽  
Athula B. Attygalle
Keyword(s):  
Alkali Metal ◽  
Gas Phase ◽  
Metal Oxalate ◽  
Metal Adducts ◽  
Gas Phase Fragmentation

Continuous flow fast atom bombardment mass spectrometry of mononucleotides and their metal complexes

1989 ◽  
Vol 67 (5) ◽  
pp. 910-920 ◽  
Author(s):  
M. J. Bertrand ◽  
V. Benham ◽  
R. St-Louis ◽  
M. J. Evans
Keyword(s):  
Mass Spectrometry ◽  
Continuous Flow ◽  
Fast Atom Bombardment ◽  
Aqueous Media ◽  
Molecular Ions ◽  
Fragment Ions ◽  
Low Concentrations ◽  
Metal Adducts ◽  
Matrix Concentration

The mass spectra of mononucleotides and their metal adducts Na, K, Mg, Ca, Ni, Co, Cu, and Zn of guanosine 5′-monophosphate (5′-GMP) as well as H, Na, and Mg of adenosine 5′-monophosphate (5′-AMP) and H and Ni of inosine 5′-monophosphate (5′-IMP) have been obtained in low concentrations of matrix in water using continuous-flow fast atom bombardment. The results indicate that this technique is suitable for the analysis of these complexes in aqueous media and yields spectra that are highly characteristic of the compounds analyzed. Parent-molecular ions and structurally significant fragment ions are observed for all compounds studied and the different binding sites for the metal on the nucleotides can be isolated from the fragment ions. Experimental parameters influencing the quality of the spectra such as flow rate, matrix concentration, matrix nature, and analyte concentration have been studied and optimized. For the thirteen compounds studied, it appears that continuous-flow FAB is superior to conventional FAB and that good quality spectra can be obtained with as little as 0.5% of added matrix thus minimizing spectral interferences. Keywords: continuous flow FAB, FAB MS, mass spectrometry, nucleotides, metal-nucleotides.

Fast atom bombardment mass spectrometric study of alkali metal cationized unsaturatedC-glycosides

1993 ◽  
Vol 28 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Mohamed Brakta ◽  
Brahim Chaguir ◽  
Denis Sinou ◽  
Michel Becchi ◽  
Marie Joëlle Bobenrieth ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Fast Atom Bombardment ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study
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