Radiochemical Separation and Measurement by Mass Spectrometry with Magnetic Sector with Inductively Coupled Plasma source (ICP-SFMS) of Plutonium Isotopes in Soil Samples
Journal: Journal of Nuclear Physics, Material Sciences, Radiation and Applications (Vol.4, No. 1)Publication Date: 2016-08-08
Authors : C. O. Tores-Cort és; H. Hernández-Mendoza; H. R. Vega-Carrillo; E. T. Romero -Guzmán;
Page : 139-148
Keywords : Plutonium isotopes; Radiochemical separation; Soil; ICP-SFMS;
Abstract
The aim of this work is twofold: to optimize the radiochemical separation of Plutonium (Pu) from soil samples, and to measure the Pu concentration. Soil samples were prepared using acid digestion assisted by microwaves; then, Pu purification was carried out with Pu AG1X8 resin. Pu isotopes were measured using Mass Spectrometry with Magnetic Sector with Inductively Coupled Plasma source (ICP-SFMS). In order to reduce the interference due to the presence of 238UH+ in the samples a desolvation system (Apex) was used. The limit of detection (LOD) of Pu was determined. The efficiency of Pu recovery from soil samples varies from 70 to 93%.
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