高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (12): 1594.

• 论文 • 上一篇    下一篇

冠醚-PVC膜铯离子选择电极的研究

周俊婷1, 颜肖慈1, 罗明道1, 屈松生1, 喻宗源2   

  1. 1. 武汉大学化学系, 武汉, 430072;
    2. 湖北省化学研究所
  • 收稿日期:1992-01-29 修回日期:1992-05-05 出版日期:1992-12-24 发布日期:1992-12-24
  • 通讯作者: 颜肖慈

Cesium-Selective PVC Membrane Electrode Based on a Newly Crown Ether

ZHOU Jun-Ting1, YAN Xiao-Ci1, LUO Ming-Dao1, QU Song-Sheng1, YU Zong-Yuan2   

  1. 1. Department of Chemistry, Wuhan University, Wuhan, 430072;
    2. Hubei Insitute of Chemistry, Wuhan
  • Received:1992-01-29 Revised:1992-05-05 Online:1992-12-24 Published:1992-12-24

摘要: 以4,4'-二叔丁基-二苯并21-冠-7为中性载体制作PVC膜电极,经近百个电极实验发现,cs+、Rb+离子响应性能较好,其中以DOA、NPOE为增塑剂时电极性能最佳,对铯离子线性响应范围分别为5×10-6~10-2和3×10-4~10-2mol/L,斜率分别为58和51mV/Pa(25℃).还研究了多种增塑剂及冠醚含量对电极性能的影响,并结合红外光谱实验对电极的响应机理进行了探讨.

关键词: 4, 4'-二叔丁基-二苯并-21-冠-7, 铯离子, 膜电极, NPOE, DOA

Abstract: A cesium ion selective PVC membrane electrode based on 4,4'-ditert-butyl di-benzo-2i-C-7 is presented.The electrode has the best sensitivity and considerably good selectivity over alkali and alkaline earth ions in monocrown ethers.

Key words: 4,4'-ditert-butyl dibenzo-21-C-7, Cesium ion, Membrane electrode, NPOE, DOA

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