Determination of radiostrontium isotopes: a review of analytical methodology.

A great number of analytical methods have been developed and applied for the determination of (90)Sr and (89)Sr in environmental and nuclear samples using various measuring techniques, i.e. beta counting, liquid scintillation spectrometry and mass spectrometry.

Plutonium isotopes in the Hungarian environment.

More than 50 soil samples were analysed from different parts of the country, the activity concentration of 239+240Pu was in the range of 0.01-0.84 Bq/kg dry soil with the average of 0.

Determination of long-lived Nb isotopes in nuclear power plant wastes.

(94)Nb and (93m)Nb are long-lived radionuclides, produced by thermal and fast neutrons from (93)Nb that is a major component of the Zr alloys used in nuclear reactors. A radiochemical method for the determination of these nuclides has been developed. The separation is based on the insolubility of Nb oxides and the retention of the fluoric complexes on anion exchange resin.