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Determination of carbon-14 in environmental level, solid reference materials

Blowers, Paul; Caborn, Jane; Dell, Tony; Gingell, Terry; Harms, Arvic; Long, Stephanie; Sleep, Darren; Stewart, Charlie; Walker, Jill; Warwick, Phil E.. 2011 Determination of carbon-14 in environmental level, solid reference materials. Applied Radiation and Isotopes, 69 (10). 1323-1329. 10.1016/j.apradiso.2011.01.011

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Abstract/Summary

An intercomparison exercise to determine the 14C activity concentrations in a range of solid, environmental level materials was conducted between laboratories in the UK. IAEA reference materials, C2, C6 and C7, and an in-house laboratory QA material were dispatched in 2006 to ten laboratories comprising of members of the Analyst Informal Working Group (AIWG) and one other invited party. The laboratories performed the determinations using a number of techniques, and using the results each one was evaluated in terms of levels of precision, sensitivity and limits of detection. The results of the study show that all techniques are capable of successfully analysing 14C in environmental level materials, however, a shortage of certified environmental reference materials exists. The suitability of the IAEA reference materials and other material for use as reference materials was also assessed.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.apradiso.2011.01.011
Programmes: CEH Topics & Objectives 2009 onwards > Biogeochemistry
CEH Sections: Shore
ISSN: 0969-8043
Additional Keywords: carbon-14, quality assurance, environmental, analysis
NORA Subject Terms: Ecology and Environment
Chemistry
Date made live: 19 Aug 2011 08:50
URI: http://nora.nerc.ac.uk/id/eprint/14804

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