Natural tracking indicators found in nature.
Stable isotopes have been used in ecosystem research, earth sciences, and resource exploration. There are over 100 types of elements on Earth. While the "protons" that determine the properties of elements are the same, the number of "neutrons" differs, resulting in atoms that have the same properties but different weights (masses). This is called "isotopes." For example, in the case of hydrogen, there is hydrogen with one proton, deuterium with one proton and one neutron, and tritium with one proton and two neutrons. Among these isotopes, there are two types: radioactive isotopes, which are unstable and emit radiation over time, releasing neutrons and changing their atomic number, and stable isotopes, which exist stably. For instance, in atmospheric nitrogen, ¹⁴N accounts for 99.635%, while ¹⁵N, which has one more neutron and is heavier than ¹⁴N, exists at 0.365%.
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basic information
【Features】 ○ High-precision measurement of oxygen and hydrogen stable isotope ratios can be conducted on organic materials such as food. ○ Stable analysis of oxygen and hydrogen stable isotope ratios can be consistently performed on organic materials. ○ Traditionally, carbon and nitrogen stable isotope ratio analysis was predominant, but now the addition of oxygen and hydrogen stable isotope ratios allows for multi-stable isotope ratio analysis, enabling various new analytical tests. ● For other functions and details, please contact us.
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Applications/Examples of results
【Purpose】 ○ Research on ecosystems, Earth sciences, and resource exploration ● For other functions and details, please contact us.
Company information
Isotope Research Institute Co., Ltd. was established as Japan's first food origin identification testing organization, having evolved from the analytical division of the Japan Isotope Analysis Institute. In addition to stable isotope ratio analysis, it operates a certification business for origin verification and a quality assessment business for agricultural and livestock products through non-destructive optical measurement. The company actively promotes the development of origin identification testing technology in the food sector and now provides scientific testing for origin and country of origin, offering identification tests for various products such as eel, taro, beef, and timber. It boasts the largest scale in the country in terms of both target items and achievements. The accumulation of stable isotope ratio data for various agricultural, forestry, and fishery products and livestock nationwide has already reached 50,000 cases. A distinctive feature of the Isotope Research Institute is its nationwide, direct sample collection conducted in-house. Data has been accumulated on rice, bamboo shoots, beef, pork, eel, wakame, kombu, hijiki, various vegetables, and fruits. Furthermore, the expansion of foundational data such as GPS data from collection points, agricultural water, and river water is utilized as unparalleled foundational data for origin identification.
