高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 171.
• Electroanalytical Chemistry • 上一篇 下一篇
ZHAO Chang-Zhi1, Naoyoshi Egashira2, Yoshiaki Kurauchi3, Kazuya Ohga3
ZHAO Chang-Zhi1, Naoyoshi Egashira2, Yoshiaki Kurauchi3, Kazuya Ohga3
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.
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