演題概要

ポスター発表

第1日　6月22日（水）　　P会場（501，502，503）

1P-34　　PDF

マルチターン飛行時間型質量分析計を用いた土壌中ガスの連続測定

(¹阪大院理・ ²北大院農・ ³阪大リノ工作)
^o鈴木舜也¹・ 当真要²・ 中山典子¹・ 本堂敏信¹・ 河井洋輔¹・ 大塚洋一¹・ 古谷浩志³・ 豊田岐聡¹

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.