Collaborative trials of the sampling of two foodstuffs, wheat and green coffee by Michael Thompson and others 2026-11-05
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Analyst127(5),689–691(2002), DOI10.1039/b200922f. Primary indexed byline Michael Thompson, Paul Willetts, Sharron Anderson, Paul Brereton and Roger Wood. Abstract: multiple samplers collected wheat and green coffee; significant between-sampler variation for two wheat analytes, no significant sampling-reproducibility variation for coffee but significant sampling-repeatability variation.
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Harmonised guidelines for the use of recovery information in analytical measurement by Michael Thompson and others 2026-11-05
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Pure and Applied Chemistry71(2),337–348(1999), DOI10.1351/pac199971020337. Original byline Michael Thompson, Steven L. R. Ellison, Aleš Fajgelj, Paul Willetts and Roger Wood. Publisher index spells the title Harmonized; the original PDF prints Harmonised. Recommendation1 reporting provisions are reproduced in the Codex adoption text www.fao.org/4/x9945e/x9945e0k.htm : identify correction status, magnitude and derivation.
Official Eurachem-hosted full text: www.eurachem.org/images/stories/Guides/pdf/recovery.pdf . PDF p1 gives the full byline and affiliations; §§3.2–3.2.2 distinguish native and surrogate recovery and spiking; §3.3 discusses matrix mismatch; §5.1 discusses representative recovery studies; §6 and the Appendix discuss correction by recovery and propagated uncertainty. The Recommendations specify reporting whether correction was applied.
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