Wr. Ferrell et al., A PLASMA DESORPTION MASS-SPECTROMETRY STUDY OF CLUSTER ION FORMATION FROM GROUP IIA NITRATES, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 112(1-4), 1996, pp. 55-58
Cluster ion distributions from the plasma desorption of the Group IIA
metal nitrates were examined. Two predominant positive cluster species
are observed, (MO)(n)H-+ and (MO)(n)M(+) (M denotes metal atom). Regu
lar pronounced features are observed in the mass spectra, including en
hanced abundances at certain ''magic numbers'' of n.