Abstract
The general principle of using data collected during proficiency testing (PT) for the additional purpose of assessing method performance is discussed. Particular attention is paid to the similarities and differences in conduct of traditional interlaboratory method performance studies and proficiency testing. Recommendations are made for implementing PT-based method performance studies, including statistical assessment of the data. It is concluded that, properly implemented, PT-based method performance study provides essentially equivalent information to that obtained from traditional collaborative study and may be used in appraising candidate methods with a view to their adoption as standard methods.
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This report was developed by S.L.R. Ellison (LGC Limited), M. Thompson (University of London), D. Westwood (Environment Agency National Laboratory Service) and R. Wood (Food Standards Agency) for the Statistical Subcommittee and approved by the Analytical Method Committee.
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Analytical Method Committee, The Royal Society of Chemistry. The role of proficiency testing in method validation. Accred Qual Assur 15, 73–79 (2010). https://doi.org/10.1007/s00769-009-0560-5
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DOI: https://doi.org/10.1007/s00769-009-0560-5