直近一年間の累計
アクセス数 : ?
ダウンロード数 : ?
ID 116936
著者
Tanaka, Haruka Tokushima University
Namikawa, Makoto Tokushima University
Tomiyasu, Naoya Tokushima University
キーワード
Ammonia
Denuder
Ammonia transfer device
Conductivity detection
Flow analysis
資料タイプ
学術雑誌論文
抄録
Gaseous ammonia (NH3) is a primary basic substance in the atmosphere, and its global emission has been increasing in recent decades. It is vital to continuously monitor the atmospheric NH3 to clarify the impact of NH3 on sensitive ecosystems. This paper proposes a simple gaseous NH3 monitor utilizing a parallel plate wet denuder (PPWD) and a conductometric flow injection analysis (FIA) with an ammonia transfer device (ATD). In the present study, water-soluble basic gases, NH3, are selectively detected by the conductivity detector (CD). The ATD-CD ammonium detector requires no coloring reagents commonly used in FIA. Five-day field measurement of ambient NH3 was successfully performed with 30 min time resolution. All the air samples over the observation period (n = 186) contained NH3 above the limit of quantification (11.4 nmol m−3). The NH3 data showed excellent agreement with the values using ion chromatography in the field measurements.
掲載誌名
Talanta Open
ISSN
26668319
出版者
Elsevier
5
開始ページ
100091
発行日
2022-01-29
権利情報
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
薬学系