The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan
Japanese

Abstract

Table of contents

Timetable

Plenary Lectures

Award Lecture

Oral Sessions (Day1, Day2, Day3)

Poster Presentations (Day1, Day2, Day3)

Panel Discussion

Luncheon Seminars (Day1, Day2, Day3)

Corporate Program

Poster Presentations

Day 1, June 22（Wed.）　　Room P (501, 502 and 503)

1P-34　　PDF

Continuous measurement of soil-gas using Multi-turn Time-of-Flight Mass Spectrometer

(1Osaka Univ., 2Hokkaido Univ., 3Osaka Univ.)
oShunya Suzuki1, Yo Toma2, Noriko Nakayama1, Toshinobu Hondo1, Yosuke Kawai1, Yoichi Otsuka1, Hiroshi Furutani3, Michisato Toyoda1

By measuring the soil gas produced by bacteria such as CO2 and N2O, the condition of the soil can be clarified. We have been developing a GC-MULTUM consisting of a multi-turn time-of-flight mass spectrometer (MULTUM) and a gas chromatograph for measuring the time evolution of various soil gases in the field. In this study, we developed a method for continuously sampling and measuring the depth profile of soil gas concentration. As a result of the experiment, we have succeeded in capturing the change of the N2O concentration caused by denitrification due to bacteria activity.