Rapid selective separation of americium/curium from simulated nuclear forensic matrices using triazine ligands

Higginson, Matthew, Thompson, Paul, Marsden, Olivia, Livens, Francis, Harwood, Laurence, Lewis, Frank, Hudson, Michael and Heath, Sarah (2015) Rapid selective separation of americium/curium from simulated nuclear forensic matrices using triazine ligands. Radiochimica Acta, 103 (10). pp. 687-694. ISSN 2193-3405

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Abstract

In analysis of complex nuclear forensic samples containing lanthanides, actinides and matrix elements, rapid selective extraction of Am/Cm for quantification is challenging, in particular due the difficult separation of Am/Cm from lanthanides. Here we present a separation process for Am/Cm(III) which is achieved using a combination of AG1-X8 chromatography followed by Am/Cm extraction with a triazine ligand. The ligands tested in our process were CyMe4-BTPhen, CyMe4-BTBP, CA-BTP and CA-BTPhen. Our process allows for purification and quantification of Am and Cm (recoveries 80%-100%) and other major actinides in < 2d without the use of multiple columns or thiocyanate. The process is unaffected by high level Ca(II)/Fe(III)/Al(III) (10mg mL(-1)) and thus requires little pre-treatment of samples.

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