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|Title:||Measurement of Platinum Isotope Amount Ratios by Negative thermal Ionization Mass Spectrometry Using a Thermionic Quadrupole Mass Spectrometer.|
|Authors:||BRICHE Celine; TAYLOR P.d.p.; DE BIEVRE P.|
|Citation:||Analytical Chemistry vol. 69 no. 4 p. 791-793|
|Type:||Articles in Journals|
|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 Institute:||Institute for Reference Materials and Measurements|
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