ＬａＦ３単結晶を用いた全固体型ｐＨセンサの特性

• 桑田 茂樹

  新居浜工業高等専門学校生物応用化学科

• 中山 享

  新居浜工業高等専門学校生物応用化学科

書誌事項

タイトル別名

• Properties of All-solid-state pH Sensor Using LaF3 Single Crystal

抄録

An all-solid-state type pH sensor was investigated for the monitoring of pH in the aqueous solution in the tempera-ture range from 25°C to 80°C. The all-solid-state pH sensor consists of two half-cells: an indicator electrode using the LaF₃ single crystal and an Ag/AgCl reference electrode coated with Nafion film. The electromotive force of the all-solid-state pH sensor decreased linearly with pH increase in the solution in accordance with the Nernst's equation. The electromotive force was also scarcely influenced in the presence of inorganic ions such as Na⁺ and Cl^-. It was practi-cally confirmed by the pH titration test that the all-solid-state pH sensor behaved similarly to the commercial pH meter with the conventional glass electrode. In addition, the all-solid-state pH sensor operated stably up to 80°C.

収録刊行物

• 日本イオン交換学会誌

  日本イオン交換学会誌 19 (3), 174-178, 2008

  日本イオン交換学会

キーワード

• pHモニタリング
• フッ化物イオン伝導体
• ナフィオン膜
• 起電力
• 高温応答性

詳細情報

• CRID: 1390282679411162240
• NII論文ID: 130004162506
• DOI: 10.5182/jaie.19.174
• ISSN: 18843360
• ISSN: 0915860X
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可