MEASUREMENT OF PLATINUM ISOTOPE AMOUNT RATIOS BY NEGATIVE THERMAL IONIZATION MASS-SPECTROMETRY USING A THERMIONIC QUADRUPOLE MASS-SPECTROMETER

Authors
BRICHE CSJ TAYLOR PDP DEBIEVRE P
Citation
Csj. Briche et al., MEASUREMENT OF PLATINUM ISOTOPE AMOUNT RATIOS BY NEGATIVE THERMAL IONIZATION MASS-SPECTROMETRY USING A THERMIONIC QUADRUPOLE MASS-SPECTROMETER, Analytical chemistry, 69(4), 1997, pp. 791-793
Citations number
9
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical chemistry → ACNP
ISSN journal
00032700
Volume
69
Issue
4
Year of publication
1997
Pages
791 - 793
Database
ISI
SICI code
0003-2700(1997)69:4<791:MOPIAR>2.0.ZU;2-P
Abstract
A thermal ionization mass spectrometric procedure was developed for th e measurement of platinum, Single- and double-filament techniques were investigated. Negative Pt ions were produced in the source of a therm ionic quadrupole mass spectrometer equipped with a secondary electron multiplier operated in ion counting mode. A high-purity platinum aqueo us solution of natural isotopic composition was used as sample on a rh enium filament. This method allows the natural amount ratio of the maj or isotopes n(Pt-194)/n(Pt-195) to be measured with a repeatability of 0.3%.