应用化学 ›› 1991, Vol. 0 ›› Issue (2): 97-99.

• 研究简报 • 上一篇    

硫杂冠醚PVC膜汞(Ⅱ)离子选择电极的研制

陈立钦, 黄大海, 黄载福   

  1. 武汉大学环境科学系, 武汉 430072
  • 收稿日期:1990-03-05 修回日期:1990-07-04 出版日期:1991-04-10 发布日期:1991-04-10

PVC MEMBRANE MERCURIC ELECTRODES BASED ON THIACROWN ETHERS

Chen Liqin, Huang Dabai, Huang Zaifu   

  1. Department of Environmental Science, Wuhan University, Wuhan 430072
  • Received:1990-03-05 Revised:1990-07-04 Published:1991-04-10 Online:1991-04-10

摘要: 以硫杂冠醚为活性物质的PVC膜汞(Ⅱ)离子选择电极的研究近年已有报道[1],我们曾报道二茂铁硫杀冠醚PVC膜汞(Ⅱ)离子选择电极的研制[2]。并根据硫和汞的软硬酸碱相亲性,设计并合成了8个新型硫杂冠醚[3]。本文以它们为活性物质研制PVC膜汞(Ⅱ)离子选择电极,对其性能进行了研究。

关键词: 硫杂冠醚, 汞(Ⅱ)离子, 离子选择电极

Abstract: Mercuric ion selective PVC membrane electrodes based on eight thiacrown ethers wereprepared and their electrode behavior was evaluated.These electrodes exhibited a linear res-ponse to the mercuric ion within the concentration range of 10-6~10-3mol/L Hg(NO3)2 with slope of 45~58mV per decade.The lowest limit of linear response extended to 10-6mol/L.

Key words: thiacrown ether, mercuric ion, ion selective electrode