高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (3): 377.

• 研究简报 • 上一篇    下一篇

以AmberlystA-27为载体的光纤铁反射传感器的研究

卢建忠1, 章竹君2   

  1. 1. 南京大学化学系, 南京 210008;
    2. 陕西师范大学化学系, 西安 710062
  • 收稿日期:1994-04-19 修回日期:1994-10-03 出版日期:1995-03-24 发布日期:1995-03-24
  • 通讯作者: 章竹君
  • 作者简介:卢建忠,男,28岁,博士研究生.
  • 基金资助:

    国家自然科学基金

A Fiber-Optic Reflacted Iron Sensor with Amberlyst A-27 as a Substrate

LU Jian-Zhong1, ZHANG Zhu-Jun2   

  1. 1. Department of Chemistry, Nanjing University, Nanjing 210008;
    2. Department of Chemistry, Shaanxi Normal University, Xian 710062
  • Received:1994-04-19 Revised:1994-10-03 Online:1995-03-24 Published:1995-03-24

关键词: 光纤传感器, 反射, 铁离子

Abstract: Afiber-optic iron reflected sensor has been developed by immobilizing pyrocatecholdisulfonic acid on Amberlyst A-27.The formation of the FeHLcomplex between iron ion and immobilized pyrocatedisulfonic acid caused a large reflected intensity change at 485 nm,which was due to a sharp change in colour of the reagent phase from white to violet,and iron ion in the solution can be determinated.The sensor has a higher sensitivity as well as good reversibility and has been applied to the determination of water samples. The reaction mechanism was also preliminary studied.

Key words: Fiber-optic sensor, Reflection, Iron ion

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