GLUCOSE MICRO-ENZYME SENSOR BASED ON COBALT PORPHYRIN MODIFIED MICRODISK ARRAY CARBON FIBER ELECTRODE

Chinese Journal of Applied Chemistry ›› 1991, Vol. 0 ›› Issue (3): 86-88.

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GLUCOSE MICRO-ENZYME SENSOR BASED ON COBALT PORPHYRIN MODIFIED MICRODISK ARRAY CARBON FIBER ELECTRODE

Feng Lianyu, Che Guangli, Dong Shaojun, Zhang Yonghua

Laboratort of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022

Received:1990-07-03 Revised:1990-10-27 Published:1991-06-10 Online:1991-06-10

Abstract

Abstract: A cobalt tetraphenyl porphyrin modified microdisk array carbon fiber electrode has been prepared which showed a catalytic activity for oxygen reduction through linear voltam-metry.A glucose microenzyme electrode has been made based on the modified microelectrodeby immobilizing glucose oxidase.The upper detection limit of the microsensor was 2.4mmol/L.The response took 40s with satisfactory selectivity.The sensor held linear upto 13mmol/L in use for amperometric detection in the flow injection analysis.

Key words: biosensor, modified electrode, microelectrode, glucose, enzyme clectiode

Feng Lianyu, Che Guangli, Dong Shaojun, Zhang Yonghua. GLUCOSE MICRO-ENZYME SENSOR BASED ON COBALT PORPHYRIN MODIFIED MICRODISK ARRAY CARBON FIBER ELECTRODE[J]. Chinese Journal of Applied Chemistry, 1991, 0(3): 86-88.

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GLUCOSE MICRO-ENZYME SENSOR BASED ON COBALT PORPHYRIN MODIFIED MICRODISK ARRAY CARBON FIBER ELECTRODE

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