POSTIONIZATION CHEMICAL-SEPARATION - A MASS-SPECTROMETRIC TECHNIQUE FOR ISOTOPIC ANALYSIS OF MIXTURES

Authors
IRIKURA KK FOWLES EH BEAUCHAMP JL
Citation
Kk. Irikura et al., POSTIONIZATION CHEMICAL-SEPARATION - A MASS-SPECTROMETRIC TECHNIQUE FOR ISOTOPIC ANALYSIS OF MIXTURES, Analytical chemistry, 66(20), 1994, pp. 3447-3448
Citations number
32
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical chemistry → ACNP
ISSN journal
00032700
Volume
66
Issue
20
Year of publication
1994
Pages
3447 - 3448
Database
ISI
SICI code
0003-2700(1994)66:20<3447:PC-AMT>2.0.ZU;2-V
Abstract
Mass spectrometric analysis of isotopic mixtures is difficult when iso topes of different elements possess nearly the same mass and cannot be resolved. A new strategy, in which gaseous reagents induce selective ''chemical shifts'' in the mass spectrum, is proposed for resolving su ch mass interferences. This application of ion-molecule chemistry is d emonstrated for the separations of Re-187(+) and Os-187(+) and of Os-1 86(+) and W-186(+).