Influence of Ba concentration on Ra and 210Pb extraction from aqueous samples using EMPORE ® radium RAD disks

AbstractThe separation procedure for Ra isotopes and210Pb from water using the EMPORE ™ radium RAD disks is very quick and convenient. However, higher levels of the chemically similar Ba in the water at least partly prohibit the uptake of Ra and210Pb, hampering the correct determination of these radionuclides. This investigation shows that the decrease of extraction yield in dependence of the Ba mass is much slower for Ra than for210Pb: With a Ba content  ≤ 1 mg in the water sample,226Ra could be separated completely,210Pb, however, showed a decreasing recovery already at 0.1  mg Ba addition.
Source: Journal of Radioanalytical and Nuclear Chemistry - Category: Nuclear Medicine Source Type: research