Lead Isotope Determinations by Mass Spectrometry and Its Application by Isotope Dilution Technique

Abstract

A method for the determination of Lead isotope ratios by thermal ionization mass spectrometry (TIMS). This method also describes the application of isotope dilution mass spectrometry (IDMS) to the field of reference material (RM) characterization focusing on the approach. Emphasis is placed on IDMS measurements of highest analytical quality. Basic principles as well as the equation system are being recalled. The evaporation and ionization currents are determined for a measurement of isotopic ratios of head, employing double rhenium filament assembly in the ion source and Faraday cup as the detector using the presently available RM.