Laser desorption studies of high mass biomolecules in Fourier-transform ion cyclotron resonance mass spectrometry. Academic Article uri icon

abstract

  • Matrix-assisted laser desorption ionization is used to obtain Fourier-transform ion cyclotron resonance mass spectra of model peptides (e.g., gramicidin S, angiotensin I, renin substrate, melittin, and bovine insulin). Matrix-assisted laser desorption ionization yields ions having appreciable kinetic energies. Two methods for trapping the high kinetic energy ions are described: (i) the ion signal for [M+H]+ ions is shown to increase with increasing trapping voltages, and (ii) collisional relaxation is used for the detection of [M+H]+ ions of bovine insulin.

published proceedings

  • Proc Natl Acad Sci U S A

author list (cited authors)

  • Solouki, T., & Russell, D. H.

citation count

  • 38

complete list of authors

  • Solouki, T||Russell, DH

publication date

  • July 1992