Minimum requirements for publishing hydrogen, carbon, nitrogen, oxygen and sulfur stable-isotope delta results (IUPAC Technical Report)
Grzegorz Skrzypek, Colin E. Allison, J. K. Böhlke, Luana Bontempo, Paul J. Brewer, Federica Camin, James F. Carter, Michelle M. G. Chartrand, Tyler B. Coplen, Manfred Gröning, Jean‐François Hélie, Germain Esquivel‐Hernández, Rebecca Kraft, Dana Alina Măgdaş, Jacqueline L. Mann, Juris Meija, Harro A. J. Meijer, Heiko Moossen, Nives Ogrinc, Matteo Perini, Antonio Possolo, Karyne M. Rogers, Arndt Schimmelmann, Aldo Shemesh, David X. Soto, Freddy Thomas, Robert Wielgosz, Michael R. Winchester, Yan Zhao, Philip J. H. Dunn
Abstract
Abstract Stable hydrogen, carbon, nitrogen, oxygen and sulfur (HCNOS) isotope compositions expressed as isotope-delta values are typically reported relative to international standards such as Vienna Standard Mean Ocean Water (VSMOW), Vienna Peedee belemnite (VPDB) or Vienna Cañon Diablo Troilite (VCDT). These international standards are chosen by convention and the calibration methods used to realise them in practice undergo occasional changes. To ensure longevity and reusability of published data, a comprehensive description of (1) analytical procedure, (2) traceability, (3) data processing, and (4) uncertainty evaluation is required. Following earlier International Union of Pure and Applied Chemistry documents on terminology and notations, this paper proposes minimum requirements for publishing HCNOS stable-isotope delta results. Each of the requirements are presented with illustrative examples.