RAPID SEPARATION METHOD FOR 237NP AND PU ISOTOPES IN LARGE SOIL SAMPLES

A new rapid method for the determination of {sup 237}Np and Pu isotopes in soil and sediment samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used for large soil samples. The new soil method utilizes an acid leaching method, iron/titanium hydroxide...

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Bibliographic Details
Published in:Applied radiation and isotopes 2010-07
Main Authors: Maxwell, S., Culligan, B., Noyes, G.
Format: Article
Language:English
Subjects:
ENVIRONMENTAL SCIENCES
FLOW RATE
HYDROXIDES
LANTHANUM FLUORIDES
LEACHING
NEPTUNIUM 237
NEPTUNIUM ISOTOPES
PLUTONIUM ISOTOPES
PRECIPITATION
REMOVAL
SAVANNAH RIVER PLANT
SEDIMENTS
SOILS
USA
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Summary:A new rapid method for the determination of {sup 237}Np and Pu isotopes in soil and sediment samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used for large soil samples. The new soil method utilizes an acid leaching method, iron/titanium hydroxide precipitation, a lanthanum fluoride soil matrix removal step, and a rapid column separation process with TEVA Resin. The large soil matrix is removed easily and rapidly using this two simple precipitations with high chemical recoveries and effective removal of interferences. Vacuum box technology and rapid flow rates are used to reduce analytical time.
ISSN:0969-8043
1872-9800