高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 171.

• Electroanalytical Chemistry • 上一篇    下一篇

Electrochemiluminescence Sensor Having a Pt Electrode Coated Doubly with Ru(bpy)32+-Modified Chitosan and Silica Gel Membranes. Influence of the Introduction of Functional Groups into the Silica Gel on the Substrate Selectivity

ZHAO Chang-Zhi1, Naoyoshi Egashira2, Yoshiaki Kurauchi3, Kazuya Ohga3   

  1. 1. Dept. of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, P. R. China;
    2. Dept. of Bio-Resource Chemistry, Hiroshima Prefectaral University, Shobara-shi, Hiroshima 727-0023, Japan;
    3. Dept. of Applied Chemistry, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
  • 出版日期:1999-12-31 发布日期:1999-12-31
  • 基金资助:

    Supported by the Scientific Research Foundation for the Returned Overseas Chinese Sponsored by SRF for ROCS, SEM

Electrochemiluminescence Sensor Having a Pt Electrode Coated Doubly with Ru(bpy)32+-Modified Chitosan and Silica Gel Membranes. Influence of the Introduction of Functional Groups into the Silica Gel on the Substrate Selectivity

ZHAO Chang-Zhi1, Naoyoshi Egashira2, Yoshiaki Kurauchi3, Kazuya Ohga3   

  1. 1. Dept. of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, P. R. China;
    2. Dept. of Bio-Resource Chemistry, Hiroshima Prefectaral University, Shobara-shi, Hiroshima 727-0023, Japan;
    3. Dept. of Applied Chemistry, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
  • Online:1999-12-31 Published:1999-12-31
  • Supported by:

    Supported by the Scientific Research Foundation for the Returned Overseas Chinese Sponsored by SRF for ROCS, SEM

摘要:

Considerable research efforts are being devoted toward the development of chemical sensors and biosensors based on the so卜gel technology. We have prepared an ECL-optic sensor having a Pt electrode coated doubly with a Ru(bpy)32+-modified chitosan and silica gel membrane. In the present paper we would like to report on the substrate selectivities of ECL electrode having a silica gel layers modified with amino or alkyl groups. The new ECL electrode were prepared by the same method as reported previously, except that organotrialkoxysilanes were added to the silica-sol precursor solution. Experimental results at an applied potential of 1.10 V vs. Ag/AgCI in 0.05 M phosphate buffer (pH 6.8) for a several substrates are summarized as follows.

Abstract:

Considerable research efforts are being devoted toward the development of chemical sensors and biosensors based on the so卜gel technology. We have prepared an ECL-optic sensor having a Pt electrode coated doubly with a Ru(bpy)32+-modified chitosan and silica gel membrane. In the present paper we would like to report on the substrate selectivities of ECL electrode having a silica gel layers modified with amino or alkyl groups. The new ECL electrode were prepared by the same method as reported previously, except that organotrialkoxysilanes were added to the silica-sol precursor solution. Experimental results at an applied potential of 1.10 V vs. Ag/AgCI in 0.05 M phosphate buffer (pH 6.8) for a several substrates are summarized as follows.

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