A liquid which have special ^187Re/^185Re and ^187Os/^190Os ratios was prepared using ^185Re and ^190Os spikes, common rheniumand osmium in molybdenite. This liquid can be used as outer standard to correct the mass bi...
The chemical procedure of reverse aqua-regia decomposition of sulfide ore hash been developed. Total analytical blanks for the procedure were 0.05ng for Os and 0.06ng for Re. The chemical recovery of the molybdenite w...
We compared two different ways of adding spikes in the chemical procedure of Re-Os age determination. One is that fusing The sample with NigH and N4O2 in the black lead crucible and the spikes of 185Re and 1900s were ...