Data for food matrix reference materials for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements

An international project developed, quality-tested, and measured isotope-delta values of 10 new food matrix reference materials (RMs) for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements to support food authenticity testing and food provenance verification. These new RMs, USGS82 to USGS91, will enable users to normalize measurements of samples to isotope-delta scales. The RMs include (i) two honeys, from Canada and tropical Vietnam, (ii) flours from C3 (rice) and C4 (millet) plants, (iii) four vegetable oils from C3 (olive, peanut) and C4 (corn) plants, and (iv) collagen powders from marine fish and terrestrial mammal origins.

本国际项目研发了10种新型食品基质标准物质（reference materials, RMs），并完成了其质量检测与氢、碳、氮、氧、硫稳定同位素比值的δ值测定工作，以支撑食品真伪鉴别与食品溯源验证。这批编号为USGS82至USGS91的新型标准物质，可协助使用者将样品的测量值归一化至同位素δ标度。该批标准物质具体涵盖：(i) 产自加拿大与热带越南的2种蜂蜜；(ii) 源自碳三（水稻）与碳四（粟米）植物的面粉；(iii) 取自碳三（橄榄、花生）与碳四（玉米）植物的4种植物油；(iv) 海鱼与陆生哺乳动物来源的胶原蛋白粉。