Stable isotopes are ubiquitous in nature, including all compounds, atmosphere and water resources, so they must exist in animals and plants. Using its physical and chemical properties almost the same as ordinary elements, various stable isotope reagents prepared are used in agriculture, hydrogeology, geochemistry, ecological environment, biomedicine, analytical detection and many other scientific fields. In recent years, stable isotope tracing has become a widely used, unique, efficient and even indispensable technology in the emerging frontier fields of genetic engineering, proteomics, metabonomics and metabolic engineering. Learn more