2012 Fiscal Year Final Research Report

Study on the production and consumption processes of trace NO by stable isotope ratio analysis

Research Project

Project/Area Number	22540497
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Geochemistry/Astrochemistry
Research Institution	Tokyo Institute of Technology
Principal Investigator	TOYODA Sakae 東京工業大学, 大学院・総合理工学研究科, 准教授 (30313357)
Research Collaborator	YAMADA Keita 東京工業大学, 大学院・総合理工学研究科, 准教授 (70323780) YOSHIDA Naohiro 東京工業大学, 大学院・総合理工学研究科, 教授 (60174942) 下島涼介東京工業大学, 大学院・総合理工学研究科, 修士課程学生
Project Period (FY)	2010 – 2012
Keywords	大気圏 / 水圏化学安定同位体
Research Abstract	Nitric oxide (NO) is produced by microbiological activities and burning of fuels.It is one of the important trace gasses involved in tropospheric ozone production and nitrogen deposition. Because nitrogen and oxygen isotopes ratios in NO can be effective tools to differentiate the reaction pathways related to NO, this study aimed to develop a simple, rapid, and high-sensitive analytical method for nitrogen and oxygen isotope ratios in NO. Simulation experiments of biomass burning were conducted using grass and wood samples. Based on concentration and isotope ratios in N2O, production and consumption processes of NO were discussed.

(3 results)