Selective separation of iron from uranium in quantitative determination of traces of uranium by alpha spectrometry in soil/sediment sample

During this work, controlled redox potential methodology was adopted for the complete separation of traces of uranium from the host matrix of mixed hydroxide of Iron. Precipitates of Fe(+2) and Fe(+3) along with other transuranic elements were obtained from acid leached solution of soil by raising the PH to 9 with 14N ammonia solution. The concentration of the uranium observed in the soil samples was 200-600ppb, whereas in sediment samples, the concentration range was 61-400ppb. (C) 2008 Elsevier Ltd. All rights reserved.