Dear Holger, I have mainly used Trace Scientific for isotopes before (www.isotopetrace.com)
They have enriched isotopes : Sm154 97 - 98+ % and Eu153 99+% I have also used Chemgas (www.chemgas.fr) before, but found turnaround not so quick. Hope this is helpful, Bob -------------------------------- Dr RW Hughes School of Chemistry University of Southampton www.materialschemistry.co.uk
