title: Measurement of 99Tc in low-level radioactive waste from reactors using 99mTc as a tracer.
abstract: A radiochemical procedure has been developed for measuring 99Tc in major low-level radioactive waste streams from commercial nuclear power facilities which contain numerous potential contaminants. Separation was by alkaline precipitation and anion exchange chromatography; trace amounts of 60Co and other radioactive contaminants were removed by solvent separation. Pure separations were obtained with average radiochemical yield of 47.3 +/- 4.3% determined by a 99mTc tracer. The lower limit of detection for 99Tc was found to be 0.16 pCi/g based on 10-g sample and a 100-min counting time.
mesh_terms: D000468:Alkalies; D011232:Chemical Precipitation; D002852:Chromatography, Ion Exchange; D009688:Nuclear Reactors; D011850:Radioactive Waste / Q000032:analysis*; D013667:Technetium / Q000032:analysis*
chemical_list: D000468:Alkalies; D011850:Radioactive Waste; D013667:Technetium