Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 66(9): 343-354 (2017)

総説Review Article

微量溶存窒素化合物の同位体比測定について—最新の測定技術とその応用—Measurements of the Natural Abundance of 15N and 18O of Dissolved Nitrogen Compounds—The Latest Technical Improvements in the Analysis—

京都大学生態学研究センターCenter for Ecological Research, Kyoto University ◇ 520–2113 滋賀県大津市平野2–509–3 ◇ 2–509–3 Hirano, Otsu, Shiga Pref. 520–2113, Japan

発行日:2017年9月15日Published: September 15, 2017


Recent developments of isotopic measurement with emphasis on N2O as the final analyte instead of N2, can provide great opportunities for scientists to measure δ15N and δ18O of nitrogen compounds. The unique characteristics of N2O such as its low atmospheric concentration, can allow us to measure δ15N and δ18O with only 20 nmol-N for nitrate. Moreover, this method is not only for nitrate and can be applicable as long as the target nitrogen compound, such as ammonium, nitrite, and dissolved organic nitrogen can be converted into N2O. In this review, I introduce the applications of this method to investigate the complex dynamics of nitrogen in the environments.

Key words: Nitrogen isotope; Oxygen isotope; nitrous oxide

This page was created on 2017-06-23T14:09:23.551+09:00
This page was last modified on 2017-09-08T15:22:17.452+09:00