A fully automated analysis procedure and instrument for the measurement of total 99Tc in aged nuclear waste has been developed. The overall analysis approach is based on a fully automated wet radiochemical analysis method. Microwave-assisted sample oxidation is used prior to a chemical separation step in order to oxidize all of the non-pertechnetate species to pertechnetate. Separation of the pertechnetate from interfering radioactive and stable matrix species is carried out using anion exchange column. The separated 99Tc is quantified using a flow-through solid cell scintillation detector. The instrument is capable of an analysis time of
Revised: October 25, 2005 |
Published: February 1, 2005
Citation
Egorov O.B., M.J. O'Hara, and J.W. Grate. 2005.Automated Radiochemical Analysis of Total 99TC in Aged Nuclear Waste Processing Streams.Journal of Radioanalytical and Nuclear Chemistry 263, no. 3:629-633.PNNL-SA-39861.