Named institutional profile, Research Interests: risks to food safety, quality and sustainability, coordination of TRACE and FOODINTEGRITY. Named profile image: pure.qub.ac.uk/files-asset/174233884/QUB_080319_8189a.jpg?f=jpg&w=160 . Fera project biography corroborates the same researcher and projects at foodintegrity.fera.co.uk/index.cfm?pageid=18 .

Named institutional profile headed Emeritus Professor Brynn Hibbert: analytical-chemistry chair1987–2013; research in chemometrics, electroanalytical chemistry and metrology; Orange Book editorship. Full name DAVID BRYNN HIBBERT independently verified in Royal Society of New South Wales Presidents’ Profiles, printed p.93, PDF page95: www.royalsoc.org.au/wp-content/uploads/2025/10/RSNSW_Presidents_Profiles_v10_25-20251022.pdf . UNSW profile explicitly identifies its portrait at api.research.unsw.edu.au/sites/default/files/images/profile/BrynnFaculty2019.PNG .

Organizer-issued abstract book, printed p.94, speaker biographies. Primary indexed text names Stephen L R Ellison, LGC Fellow at Teddington, and explicitly lists coauthorship of the recovery-information report, method-validation report and harmonized proficiency-testing protocol; principal author of Quantifying Uncertainty in Analytical Measurement. Full PDF retrieval exceeded reader size limit; indexed biography text verified. The recovery-report cover uses Steven L R Ellison.

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.

RSC institutional account, January2021, Technical Briefs section. First brief appeared in2000; identifies Michael Thompson as instigator, supported by Roger Wood as committee chair. Early topics included recovery correction and analytical quality control.

Distance Restraints introduces interproton restraints and their contribution to a combined refinement objective. Choice of Averaging, nmr.cit.nih.gov/xplor-nih/doc/current/xplor/node379.html , eqs.20.1–20.3, distinguishes inverse-sixth-power averages and sums for ambiguities. Square-Well Function, nmr.cit.nih.gov/xplor-nih/doc/current/xplor/node384.html , specifies a flat-bottom penalty. Setup of Distance Restraints, bit.niddk.nih.gov/xplor-nih/doc/current/xplor/node389.html , identifies atom selections and numerical bounds.

Assignment ambiguity is described in nmr.cit.nih.gov/xplor-nih/doc/current/xplor/node380.html , Expressing ambiguous restraints using the optional OR statement, eq.20.5. Explicit ASSIgn ... OR ... pair lists restrict the alternatives to the specified atom pairs and force SUM averaging; the molecular-copy normalization is part of that expression.

Entry H02927, DOI10.1351/goldbook.H02927. Definition: decrease in intensity, opposite to the hyperchromic effect. Source locator: Glossary of terms used in photochemistry, IUPAC Recommendations1996, Pure and Applied Chemistry68,2223–2286,p.2247. The official plain-text representation is goldbook.iupac.org/terms/view/H02927/plain .

IUCr Commission on Crystallographic Nomenclature report, accepted2May1996. Section2.3.1 describes constant-probability ellipsoids of a trivariate Gaussian displacement distribution and their relation to the mean-square displacement matrix; negative eigenvalues invalidate that physical ellipsoid interpretation.

VolumeA, chapter1.4, section1.4.4: Wyckoff-position descriptions and letter convention, beginning with a for maximal site-symmetry order and ending with the general position. Companion primary table onlinelibrary.wiley.com/iucr/itc/Ac/ch3o4v0001/ , Table3.4.3.3, gives P1 general position1a.

Definition, infinite orbit generated by a specified space group; following sections distinguish an orbit, conjugate site-symmetry groups and a Wyckoff position.

Definition: direct-basis dot products give the metric components; the inverse matrix supplies the reciprocal-space metric. Change of basis gives the congruence transformation of the metric.

DOI10.1351/goldbook.E02226. Definition: inverse of the calibration function. Distinguishes forward expected response from converting an observed response into an analyte estimate.

DOI10.1351/goldbook.C00778. Definition relates expected observed gross response to analyte amount; its single-analyte graphical display is the calibration curve. Original recommendation PAC67,1699(1995), p1703.

ICH harmonised guideline, final version adopted24May2022. Sections7.1.1–7.1.3 distinguish surrogate matrices and surrogate analytes and discuss response comparability, matrix effects and recovery. Glossary, Surrogate Matrix, gives the alternative-matrix definition.

Core dictionary version2.4.5, _atom_site_aniso_U_11, _12, _13, _22, _23 and _33, Definition: six entries of a real symmetric matrix in squared angstroms, with explicit structure-factor attenuation using reciprocal-cell lengths and Miller indices. These crystallographic components require the stated cell convention.

Site symmetry, Definition: finite space-group subgroup leaving a point invariant. Companion entry dictionary.iucr.org/Wyckoff_position, Definition: points whose site-symmetry groups are conjugate subgroups of the space group; Wyckoff-letter convention.

Core dictionary version2.4.5, _atom_site_fract_x, _atom_site_fract_y and _atom_site_fract_z, Definition: atom-site coordinates expressed as fractions of the cell lengths. The linked Cartesian coordinate items provide an alternate representation.

Primary source: publications.iupac.org/pac/71/7/1331/index.html

Verified locator: IUPAC Recommendations1999, Pure and Applied Chemistry71(7),1331–1335, DOI10.1351/pac199971071331. Publisher byline D. T. Burns and A. Townshend, Abstract: extends classification to non-multiplication reactions. Original paper indexed at old.iupac.org/publications/pac/1999/71_07_pdf/burns.pdf , printed p.1332 Introduction and Direct multiplication reaction: per-cycle multiplier K gives K^n after n cycles. Direct PDF fetch403; precise primary-paper text also indexed through a CiteSeerX copy. Full identities and Hull affiliation corroborated by the same IUPAC author-index linkage and 2002 recovery paper cover.

H02923, DOI10.1351/goldbook.H02923. Increase in spectral-band intensity associated with substituents or molecular environment. Source: Glossary of terms used in photochemistry, IUPAC Recommendations1996, PAC68,2223,p.2247. The definition concerns intensity rather than wavelength shift.

IUPAC Recommendations1998, Pure and Applied Chemistry70(4),993–1014, DOI10.1351/pac199870040993. Publisher byline K. Danzer and L. A. Currie; full names Klaus Danzer and Lloyd A. Currie in the NIST publication record www.nist.gov/publications/guidelines-calibration-analytical-chemistry-part-i-fundatmentals-and-single-component . NIST Abstract describes signal-versus-amount/concentration calibration under given conditions.