中华医学超声杂志

应用化学 ›› 1989, Vol. 0 ›› Issue (2): 63-66.

• 研究简报 • 上一篇    下一篇

锂离子选择性微电极在生物体液中的响应

庄云龙, 漆德瑶   

  1. 上海工业大学化学化工系
  • 收稿日期:1988-05-13 修回日期:1988-08-16 出版日期:1989-04-10 发布日期:1989-04-10
  • 基金资助:
    国家自然科学基金

THE RESPONSE CHARACTERISTICS OF LITHIUM ION-SELECTIVE MICROELECTRODE IN BIOLOGICAL BODY FLUIDS

Zhuang Yunlong, Qi Deyao   

  1. Department of Chemistry and Chemical Engineering, Shanghai University of Technology
  • Received:1988-05-13 Revised:1988-08-16 Published:1989-04-10 Online:1989-04-10

PDF

455

被引次数

2

摘要： 最近几年已报道了几种锂离子选择性电极.本文作者曾研制了以苯基膦酸二辛酯(DOPP)为溶剂,四苯硼酸盐为活性物质的PVC膜锂离子选择电极.本文在此基础上研制了锂离子选择性微电极,比较了以四苯硼酸钾(KTPB)及四苯硼酸钠(NaTPB)为活性物质的锂微电极的性能.同时考察了微电极在细胞内液、血清及生理盐液中对锂离子的响应特性.

关键词: 锂离子选择性微电极, 四苯硼酸盐, 生物体液

Abstract: A new PVC lithium ion-selective microelectrode based on potassium tetraphenylborate(KTPB) or sodium tetraphenylborate (NaTPB) and plasticized by di-(n-octyl)-phenylphos-phonate (DOPP) has been constructed. The microelectrode based on KTPB has lower detection limit and better selectivity characteristics for bivalent ions, but the microelcetrodebased on NaTPB has lower membrane resistance. The response characteristics of microelectrode for different concentrations in Li+ has been examined experimenetally in synthetic in-tracellular solution,serum and physiological saline.

Key words: Ion selcctive microelectrode, Tetraphenylborates, Biological body fluids

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