A COMPARISON OF FAST-ATOM-BOMBARDMENT AND ELECTROSPRAY AS METHODS OF IONIZATION IN THE STUDY OF SULFATED-LIPIDS AND SULFONATED-LIPIDS BY TANDEM MASS-SPECTROMETRY
Wj. Griffiths et al., A COMPARISON OF FAST-ATOM-BOMBARDMENT AND ELECTROSPRAY AS METHODS OF IONIZATION IN THE STUDY OF SULFATED-LIPIDS AND SULFONATED-LIPIDS BY TANDEM MASS-SPECTROMETRY, Rapid communications in mass spectrometry, 10(10), 1996, pp. 1169-1174
In recent years electrospray has become the most popular ionization te
chnique for the analysis of biomolecules. In the present study, we hav
e compared the electrospray and continuous-how fast-atom bombardment m
ethods of sample introduction and ionization for the analysis of sulph
ated and sulphonated lipids by tandem mass spectroscopy. The tandem ma
ss spectra obtained when using the two ionization techniques were simi
lar; however, small differences were evident. These differences indica
te that the precursor ions generated by fast-atom bombardment and elec
trospray have different internal energies. The two ionization techniqu
es give similar sensitivities for the recording of collision-induced d
issociation spectra. Complete structural information can be obtained f
rom 5 to 50 ng of lipid.