Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="SIMONS, DS" or (type exact bookEditor and editor="SIMONS, DS") Add to list Journal Article A1 DETERMINATION OF URANIUM AND THORIUM CONCENTRATIONS IN SOILS : COMPARISON OF ISOTOPE-DILUTION SECONDARY ION MASS-SPECTROMETRY AND ISOTOPE-DILUTION THERMAL IONIZATION MASS-SPECTROMETRY Mieke Adriaens (UGent) , JD FASSETT, WR KELLY, DS SIMONS and FC ADAMS (1992) ANALYTICAL CHEMISTRY. 64(23). p.2945-2950