Torres Cortés, Carina Oliva; Hernández Mendoza, Héctor; Vega Carrillo, Héctor René; Romero Guzmán, Elizabeth Teresita
Resumen:
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%.