Improvement of a method for the sequential determination of 210Pb, 226Ra, and uranium isotopes by LSC and alpha-particle spectrometry.
In a previous paper the authors proposed a sequential method for the determination of isotopes of uranium, thorium, radium, and lead from environmental samples using alpha-particle spectrometry and LSC techniques. Although the radiochemical yields were suitable when the assays were performed on synthetic samples, application to real environmental samples caused a major decrease in the radiochemical yield, especially for uranium in inorganic samples (soils). A modification of the procedure is described that overcomes this drawback.
Departamento de Fisica Fundamental, Facultad de Ciencias, Universidad de Salamanca, 37008 Salamanca, Spain.
J C
JC
Lozano
P
P
Blanco Rodríguez
F
F
Vera Tomé
E
E
Leal-Cidoncha
D000512:Alpha Particles; D004785:Environmental Pollutants / Q000032:analysis*; D007856:Lead Radioisotopes; D011848:Radioactive Pollutants / Q000032:analysis; D011868:Radioisotopes / Q000032:analysis*; D011883:Radium / Q000032:analysis; D012990:Soil Pollutants, Radioactive; D013057:Spectrum Analysis / Q000379:methods*; D014501:Uranium / Q000032:analysis
D004785:Environmental Pollutants; D007856:Lead Radioisotopes; D011848:Radioactive Pollutants; D011868:Radioisotopes; D012990:Soil Pollutants, Radioactive; D014501:Uranium; D011883:Radium