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A Tubular Graphite-Epoxy Electrode Incorporating horseradish Peroxidase as a Potentiometric Sensor for Hydrogen Peroxide
Citation
Zulfikar, - and Hibbert, DB and Alexander, PW, A Tubular Graphite-Epoxy Electrode Incorporating horseradish Peroxidase as a Potentiometric Sensor for Hydrogen Peroxide, Electroanalysis, 7, (8) pp. 722-725. ISSN 1040-0397 (1995) [Refereed Article]
DOI: doi:10.1002/elan.1140070805
Abstract
A novel potentiometric peroxidase enzyme sensor based on a tubular graphite‐epoxy design is reported for the determination of hydrogen peroxide in an FIA system. The sensor was formed from horseradish peroxidase (40 mg), graphite (240 mg) and epoxy (780 mg). Hydrogen peroxide, injected into pH 7,0.05 M phosphate buffer at 26°C, was determined with a linear slope of 45.6 mV/decade in the concentration range 7.5 × 10−7 to 5.0 × 10−5 M. Acceptable reproducibility of 1.2% relative standard deviation was obtained in the flow injection analysis. The advantages of this sensor are low cost, simple electronic circuit design and better selectivity than amperometric sensors and a detection limit comparable with other methods. Copyright © 1995 VCH Verlagsgesellschaft mbH
Item Details
Item Type: | Refereed Article |
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Research Division: | Chemical Sciences |
Research Group: | Analytical chemistry |
Research Field: | Instrumental methods (excl. immunological and bioassay methods) |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the chemical sciences |
UTAS Author: | Alexander, PW (Professor Peter Alexander) |
ID Code: | 6356 |
Year Published: | 1995 |
Web of Science® Times Cited: | 7 |
Deposited By: | Applied Science |
Deposited On: | 1995-08-01 |
Last Modified: | 2011-08-25 |
Downloads: | 0 |
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