The fast atom bombardment mass spectra of cationic Technetium(III) complex salts

Abstract

The positive ion fast atom bombardment mass spectra of a series of monovalent Technetium(III) cation complexes yield intense [C]+ ions and distinctive fragmentation information.

Comparison of desorption ionization methods for the analysis of neutral seven-coordinate technetium radiopharmaceuticals

“…Fast atom bombardment mass spectrometry has been used to characterize octahedral cationic Tc(III) complexes (8) containing phosphorus and arsenic ligands (14). More detailed information including oxidation sites and relative ligand stabilities was apparent from FAB-MS/MS spectra of these cationic complexes (9).…”

Fast atom bombardment mass spectrometry/mass spectrometry of cationic technetium and iron complexes

“…The first section of this paper demonstrates the utility of MS/MS analysis to distinguish structural details not evident from the conventional mass spectra of technetium and iron transition-metal complexes. Relationships between parent and daughter ions are delineated for cationic technetium and iron complexes used as organ imaging agents (31,32). Small structural details such as the site of oxide formation, common to technetium radiopharmaceuticals, are readily apparent from their MS/MS spectra.…”

“…EXPERIMENTAL SECTION All complex salts were prepared by J. F. Kronauge and characterized by infrared spectrometry and elemental analysis (32). Additional characterization of certain complexes included X-ray diffraction.…”