E-viri
Recenzirano
-
Ridone, S.; Arginelli, D.; Botta, M. C.
Journal of radioanalytical and nuclear chemistry, 2017/11, Letnik: 314, Številka: 2Journal Article
In order to determine radiostrontium with a satisfactory chemical yield, calculated by an external standard, and a low level of MDC a radioanalytical method has been optimized, for environmental and biological samples. Samples were mineralized and extracted by chromatography with prepackaged columns for Cherenkov effect measurement, via daughter radionuclide 90 Y, generated by 90 Sr. When also 89 Sr is present, 90 Y is eluted by the same column to subtract its contribution to total Cherenkov counts and determine separately 89 Sr and 90 Sr (via 90 Y) activity. By a fitting experimental data with an exponential equation the eventual presence of other β-emitter radionuclides was ascertained.
