Minimum requirements for publishing hydrogen, carbon, nitrogen, oxygen and sulfur stable-isotope delta results (IUPAC Technical Report)

Abstract Stable hydrogen, carbon, nitrogen, oxygen and sulfur (HCNOS) isotope compositions expressed as isotope-delta values are typically reported relative to international standards such Vienna Standard Mean Ocean Water (VSMOW), Peedee belemnite (VPDB) or Cañon Diablo Troilite (VCDT). These chosen by convention the calibration methods used realise them in practice undergo occasional changes. To ensure longevity reusability of published data, a comprehensive description (1) analytical procedure, (2) traceability, (3) data processing, (4) uncertainty evaluation is required. Following earlier International Union Pure Applied Chemistry documents on terminology notations, this paper proposes minimum requirements for publishing HCNOS stable-isotope delta results. Each presented with illustrative examples.