高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (1): 40.

• 研究论文 • 上一篇    下一篇

溶剂聚合膜pH电极作内电极的气敏电极的研究

袁若, 吴海龙, 赵新宇, 何晓梅, 沈国励, 章咏华, 俞汝勤   

  1. 湖南大学化学化工系, 长沙 410082
  • 收稿日期:1992-01-29 修回日期:1992-06-10 出版日期:1993-01-24 发布日期:1993-01-24
  • 通讯作者: 俞汝勤
  • 基金资助:

    国家自然科学基金;中国科学院长春应用化学研究所电分析化学开放研究实验室资助课题

The Studies on Gas-Sensing Probes with a Graphite Contacted Solvent Polymeric Membrane pH Inner Electrode

YUAN Ruo, WU Hai-Long, ZHAO Xin-Yu, HE Xiao-Mei, SHEN Guo-Li, ZHANG Yong-Hua, YU Ru-Qin   

  1. Department of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082
  • Received:1992-01-29 Revised:1992-06-10 Online:1993-01-24 Published:1993-01-24

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被引次数

3

摘要： 研究了以中性载体为活性物的石墨内导平头溶剂聚合膜(SPM)pH电极作内电极的二氧化碳和氨气敏电极。电极的性能取决于中性载体的特性,其中以菸酸十八酯为内电极膜活性物的二氧化碳气敏电极和以二辛基十八胺为活性物的氨气敏电极性能较佳。二氧化碳气敏电极用作丙酮酸脱羧酶酶电极的原电极,其性能院于传统的以玻璃pH电极作内电极的二氧化碳气敏电极。

关键词: 二氧化碳气敏电极, 氨气敏电极, 中性载体

Abstract: The present paper describes carbon-dioxide and ammonia gas-sensing probes containing neutral carriers based inner pHelectrodes.Octadecyl nicotinate (ODN), Hexadecyl nicotinate (HDN), dioctyloctadecylamine (DOODA), and dimethyloctadecylamine (DMODA), were used as neutral carries for preparation of electrodes with graphite inner contacts forming flat solvent polymeric membrane (SPM) pHsensitive tips.The results obtained show that the potentiometric response characteristics of the gas-sensing probes depend on the nature of the carriers.Carbon dioxide gas-sensing probe with ODNand ammonia gas-sensing probe with DOODAas neutral carries of the inner pHelectrodes have fair potentiometric response characteristics.Acorn navel tissue based pyruvate decarboxylase was prepared using the carbon-dioxide probe as primary electrode.The response characteristics such as electrode slope of the enzyme probe prepared was better than those of the glass inner electrode counterparts.

Key words: Carbon dioxide gas-sensing probe, Ammonia gas-sensing probe, Neutral carrier

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