Title: Measurement of Platinum Isotope Amount Ratios by Negative thermal Ionization Mass Spectrometry Using a Thermionic Quadrupole Mass Spectrometer.
Citation: Analytical Chemistry vol. 69 no. 4 p. 791-793
Publication Year: 1997
JRC N°: JRC13589
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC13589
Type: Articles in periodicals and books
Abstract: 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%.
JRC Directorate:Health, Consumers and Reference Materials

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