Measurement of Platinum Isotope Amount Ratios by Negative thermal Ionization Mass Spectrometry Using a Thermionic Quadrupole Mass Spectrometer.
A thermal ionisation mass spectrometric procedure was developed for the measurement of platinum. Single and double filament techniques were investigated. Negative Pt ion were produced in the source of a thermionic quadrupole mass spectrometer equipped with a secondary electron multiplier operated in ion counting mode. A high purity platinum aqueous sample solution of natural isotopic composition was used as sample on a rhenium filament. This method allows the natural amount ratio of the major isotopes n(194-Pt)/n(195-Pt) to be measured with a repeatability of 0.3%.
BRICHE Celine;
TAYLOR P.D.P.;
DE BIEVRE P.;
1996-07-30
JRC13589
https://publications.jrc.ec.europa.eu/repository/handle/JRC13589,
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