JMSSJ On-line

JMSSJ On-line, Vol. 49 (2001) No. 2, pp. 51-60

A Study of Alkali Halide Triple Ions by Fast Atom Bombardment and Collisionally Activated Dissociation Mass Spectrometry		>> Full Text PDF >> References
*Nora MARTINEZ,^a) Kimio ISA,^a) Ryuji NAKATA,^a) and Kazunaka ENDO^b)** ^a) Department of Natural Science Education, Faculty of Education and Regional Studies, Fukui University (Bunkyo 3-9-1, Fukui 910-8507, Japan)* ^b) Department of Chemistry, Faculty of Science, Kanazawa University (Kakuma, Kanazawa 920-1192, Japan)

This work represents a more precise study of the characteristics of A₁XA₂⁺ ions in the gas phase, which can be formed in concentrated electrolyte solutions. In order to obtain the parent ions A₁XA₂⁺, a simple system was used, a mixture of two-alkali halide salts in an aqueous solution. In this system, A₁⁺, A₂⁺ are Li⁺, Na⁺, K⁺, Rb⁺, Cs⁺ and X^- is F^-, Cl^-, Br^-, I^-, respectively. Utilizing Fast Atom Bombardment (FABMS) measurement methods, an A₁XA₂⁺ ion type in the mass spectra was obtained, and from this resulting spectrum, an ion was selected to be used as a precursor ion for the next stage. In this way, the Collisionally Activated Dissociation (CAD) spectra were obtained and the product ions identified.

Key words: Alkali halide triple ions, Fast Atom Bombardment (FAB), FABMS/MS, Collisionally Activated Dissociation (CAD), Collisionally Induced Dissociation (CID), Tandem Mass Spectrometry (TMS), Adduct ions, Attachment reactions, Ionization energies