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

Lianyu Feng; Guangli Che; Shaojun Dong; Yonghua Zhang

doi:10.3724/j.issn.1000-0518.1991.3.8688

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

Lianyu Feng Guangli Che Shaojun Dong Yonghua Zhang

Year: 1991 Journal: Chinese Journal of Applied Chemistry Vol: 8 (3)Pages: 86-88 Publisher: Science China Press

DOI: 10.3724/j.issn.1000-0518.1991.3.8688

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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.

Keywords:

Glucose oxidase Electrode Detection limit Porphyrin Amperometry Cobalt Biosensor Selectivity Catalysis Materials science Flow injection analysis Chemistry Inorganic chemistry Chromatography Nanotechnology Photochemistry Organic chemistry Electrochemistry

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Electrochemical sensors and biosensors

Physical Sciences → Engineering → Electrical and Electronic Engineering

Analytical Chemistry and Sensors

Physical Sciences → Chemical Engineering → Bioengineering

Conducting polymers and applications

Physical Sciences → Materials Science → Polymers and Plastics

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

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