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Comparing the Analytical Performance of a Range of Laboratories in the Estimation of Carbon-14. - RP0302

The project is an intercalibration exercise which compares the analytical performance of laboratories currently measuring carbon-14. The main objective is to assess the accuracy of results produced by the routine analysis of carbon-14 at environmental levels in agricultural materials. The study will be in the form of a blind trail, and samples will be both terrestrial and marine in origin, covering an activity range upwards of the current modern ambient activity. Results from participating laboratories will be compared with those derived at SURRC, which in tern will be traceable to the IAEA carbon-14 Reference Materials. Some of the samples will be duplicates to assess within laboratory variability. The data will be analysed using established statistical techniques, and a report based upon these will be submitted thereafter.
To provide MAFF with sound statistical data on the performance of laboratories who routinely carry out their carbon-14 measurements and to enable MAFF to make decisions,based on the findings, as to which laboratories perform these analyses to a suitable level of accuracy and precision.
Time-Scale and Cost
From: 1993

To: 1994

Cost: £8,480
Contractor / Funded Organisations
Scottish Universities Research and Reactor Centre