Sequential determination of 210Po and uranium radioisotopes in drinking water by alpha-particle spectrometry.
Procedures for the sequential determination of low level (210)Po and uranium radioisotopes in drinking water by alpha-particle spectrometry are presented. After addition of (208)Po and (232)U tracers, the radionuclides were preconcentrated from water samples by co-precipitation on Fe(OH)(3) or MnO(2) at pH 9 using ammonia solution. The (210)Po source was prepared by spontaneous deposition onto a copper disc either before or after uranium separation. The uranium source for alpha-particle counting was prepared by micro co-precipitation with CeF(3). The procedures were tested on mineral water and the results obtained are compared.
Benedik
L
L
European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Retieseweg 111, B-2440 Geel, Belgium. ljudmila.benedik@ijs.si
Vasile
M
M
Spasova
Y
Y
Wätjen
U
U
D000512:Alpha Particles; D011232:Chemical Precipitation; D005618:Fresh Water / Q000032:analysis; D011059:Polonium / Q000032:analysis*; D013057:Spectrum Analysis; D014501:Uranium / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*
D014875:Water Pollutants, Radioactive; D014501:Uranium; D011059:Polonium