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Isotopic dilutions of the 10Be/9Be SRM 4325 with high purity natural Beryllium in BeSO4·4H2O form were prepared gravimetrically for AMS standards. Total 4 standards with 10Be/9Be ranging from 2.68×10-11 to 2.38×10-12 were checked using the AMS at the B
Isotopic dilutions of 10Be / 9Be SRM 4325 with high purity natural Beryllium in BeSO4 · 4H2O form were prepared gravimetrically for AMS standards. Total 4 standards with 10Be / 9Be ranging from 2.68 × 10-11 to 2.38 × 10-12 were checked using the AMS at the B