Plutonium and americium in soil organic matter

Livens, Francis R.; Singleton, Diane L.. 1991 Plutonium and americium in soil organic matter. Journal of Environmental Radioactivity, 13 (4). 323-339. 10.1016/0265-931X(91)90005-Z

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Abstract/Summary

A gley soil from west Cumbria, with specific activities in its surface horizon of 5–10 kBq kg−1 239,240 Pu and comparable 241Am levels, has been used as a source of actinide-enriched organic fractions. Humic and fulvic acids were isolated by conventional alkali extraction and investigation by gel filtration, treatment with organic solvents and differential flocculation procedures. All these technique are capable of resolving the organics into two or more fractions, with specific activities up to 80 kBq kg−1 239,240 Pu. There is evidence for differentiation of plutonium and americium, with americium being concentrated, to some extent, in the lower molecular weight fractions from gel filtration.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1016/0265-931X(91)90005-Z
Programmes:	CEH Programmes pre-2009 publications > Other
UKCEH and CEH Sections/Science Areas:	_ Pre-2000 sections
ISSN:	0265-931X
Additional Keywords:	radioecology
NORA Subject Terms:	Ecology and Environment
Date made live:	19 Mar 2013 10:24 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/21307

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