Developments of a two dimensional pH sensor and its visualization method for in situ measurements in aquatic environments.

• Project/Area Number: 21710024
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Environmental dynamic analysis
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: OGURI Kazumasa Japan Agency for Marine-Earth Science and Technology, 海洋・極限環境生物圏領域, 技術研究主任 (10359177)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2009: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: pH / 可視化 / 堆積物-水境界

Research Abstract

In order to visualize pH distributions at sediment-water interface (SWI), two-dimensional pH sensor was developed. The sensor foil was fabricated alpha-Naphtholphthalein and Tetraphenylporphyrin immobilizing into a binder. Using with newly developed automatic image acquisition system and the sensor foil, semi-quantified pH image across SWI in an aquarium was obtained. For deep-sea application of the sensor, pH (or O_2) profiling system was developed. This system was evaluated at the cruise and the stability during the deployment was confirmed.

Research Products

• [Journal Article] Excess <210>^Pb and <137>^Cs concentrations, mass accumulation rates, and sedimentary processes on the Bering Sea continental shelf. (2011)
  • Author(s): Oguri, K., Harada, N., Tadai, O.
  • Journal Title: Deep-sea Research II in press
  • Peer Reviewed
• [Journal Article] ガンマ線スペクトロメトリーにおける<210>^Pb, <214>^Pbの解析方法に関する検討 (2011)
  • Author(s): 小栗一将
  • Journal Title: JAMSTEC Report of Research and Development 12 Pages: 27-36
  • NAID: 130002148827
  • Peer Reviewed
• [Journal Article] Excess ^<210>Pb and ^<137>Cs concentrations, mass accumulation rates, and sedimentary processes on the Bering Sea continental shelf (2011)
  • Author(s): Kazumasa Oguri
  • Journal Title: Deep-sea Research II
  • Peer Reviewed
• [Journal Article] ガンマ線スペクトロメトリーにおける^<210>Pb,^<214>Pbの解析方法に関する検討 (2011)
  • Author(s): 小栗一将
  • Journal Title: JAMSTEC Report of Research and Development Volume: 12 Pages: 27-36
  • NAID: 130002148827
  • Peer Reviewed
• [Journal Article] Planar O_2 optode : principle and application for measuring two dimensional O_2 dynamics at deep-sea sediments (2011)
  • Author(s): Kazumasa Oguri
  • Journal Title: Proceedings of Soil Moisture Workshop 2010 Pages: 21-24
• [Journal Article] Planar O_2 optode: principle and application for measuring two dimensional O_2 dynamics at deep-sea sediments. (2010)
  • Author(s): Oguri, K.
  • Journal Title: Proceedings of Soil Moisture Workshop 2010 Pages: 21-24
• [Presentation] Ferric iron precipitation in the Nagahama Bay, Satsuma Iwo-Jima Island, Kagoshima (2010)
  • Author(s): Nagata, T.
  • Organizer: American Geophysical Union Fall meeting 2010
  • Place of Presentation: Moscone Convention Center, San Francisco, USA
  • Year and Date: 2010-12-15
• [Presentation] 感圧塗料による寿命イメージングシステムの試作と性能評価 (2010)
  • Author(s): 杉本珠生
  • Organizer: 第6回学際領域における分子イメージングフォーラム
  • Place of Presentation: 宇宙航空研究開発機構調布航空宇宙センター
  • Year and Date: 2010-11-08
• [Presentation] Hydrothermal activity and iron sedimentation in Nagahama Bay, Satsuma Iwo-Jima Island, Kagoshima, Japan (2010)
  • Author(s): Nagata, T.
  • Organizer: 5th International Archean Symposium
  • Place of Presentation: Burswood Resort Function Centre, Burswood, Perth, Australia.
  • Year and Date: 2010-09-08
• [Presentation] 二次元酸素オプトードを使った海底の酸素濃度プロファイル測定 (2010)
  • Author(s): 小栗一将
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ、千葉市
  • Year and Date: 2010-05-24
• [Presentation] 二次元酸素オプトードを使った海底の酸素濃度プロファイル測定 (2010)
  • Author(s): 小栗一将
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ(千葉市)
  • Year and Date: 2010-05-24
• [Presentation] 鹿児島県薩摩硫黄島長浜湾における熱水活動と鉄沈殿作用 (2010)
  • Author(s): 永田知研
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ(千葉市)
  • Year and Date: 2010-05-24
• [Presentation] 光で酸素を見る～二次元酸素オプトードの原理と海底観測への適用 (2010)
  • Author(s): 小栗一将
  • Place of Presentation: キャンパスイノベーションセンター東京
  • Year and Date: 2010-03-13
• [Presentation] 光で酸素を見る～二次元酸素オプトードセンサの原理と海底観測への適用 (2010)
  • Author(s): 小栗一将
  • Organizer: 2010土壌水分ワークショップ
  • Place of Presentation: キャンパスイノベーションセンター東京、東京
  • Year and Date: 2010-03-13
• [Presentation] パラジウムオクタエチルポルフィリンを使った超高感度二次元酸素センサの開発 (2009)
  • Author(s): 小栗一将
  • Organizer: 第5回学際領域における分子イメージングフォーラム
  • Place of Presentation: 宇宙航空研究開発機構調布航空宇宙センター
  • Year and Date: 2009-11-10
• [Presentation] Development of planar O_2 optodes in JAMSTEC. (2009)
  • Author(s): Oguri, K.
  • Organizer: 2nd Japanese German Joint Seminar on Molecular Imaging Technology for Interdisciplinary Research
  • Place of Presentation: Institute of Analytical Chemistry, Uni-Regensburg, Germany.
  • Year and Date: 2009-09-02
• [Presentation] Development of planar O_2 optodes in JAMSTEC (2009)
  • Author(s): Kazumasa Oguri
  • Organizer: 2nd Japanese German Joint Seminar on Molecular Imaging Technology for Interdisciplinary Research
  • Place of Presentation: レーゲンスブルク大学分析化学研究所、ドイッ・レーゲンスブルク
  • Year and Date: 2009-09-02