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ORGANIC-PHASE ENZYME ELECTRODES FOR THE DETERMINATION OF HYDROGEN-PEROXIDE AND PHENOL
CTR INST MOLEC BIOL,W-1115 BERLIN,GERMANY; CRANFIELD INST TECHNOL,CTR BIOTECHNOL,CRANFIELD MK43 0AL,BEDS,ENGLAND; .
CTR INST MOLEC BIOL,W-1115 BERLIN,GERMANY; CRANFIELD INST TECHNOL,CTR BIOTECHNOL,CRANFIELD MK43 0AL,BEDS,ENGLAND; .
Cranfield University, UK.ORCID iD: 0000-0002-1815-9699
CTR INST MOLEC BIOL,W-1115 BERLIN,GERMANY; CRANFIELD INST TECHNOL,CTR BIOTECHNOL,CRANFIELD MK43 0AL,BEDS,ENGLAND; .
1992 (English)In: Sensors and actuators. B, Chemical, ISSN 0925-4005, E-ISSN 1873-3077, Vol. 7, no 03-jan, 408-411 p.Article in journal (Refereed) Published
Abstract [en]

An amperometric horseradish peroxidase electrode is described for the determination of hydrogen peroxide in organic solvents. The enzyme was co-adsorbed with an electron mediator, hexacyanoferrate(II), to the surface of a graphite foil electrode making reagentless measurement possible. The electrochemical reduction of the enzymatically oxidized mediator was utilized as the analytical signal. The electrode can be operated in dioxane, chloroform and chlorobenzene, the presence of a small quantity of aqueous buffer being essential for activity. On this basis a small, probe-type sensor has been assembled the response of which is linearly related to hydrogen peroxide concentration between 0.05 and 1 mM. A tyrosinase sensor has been constructed by combining a Clark-type oxygen electrode with a membrane bearing adsorbed enzyme. The sensor is capable of measuring between 0.1 and 5 mM phenol in chloroform saturated with aqueous buffer.

Place, publisher, year, edition, pages
Elsevier Science B.V., Amsterdam. , 1992. Vol. 7, no 03-jan, 408-411 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-65299ISI: A1992HT65800018OAI: oai:DiVA.org:liu-65299DiVA: diva2:394933
Available from: 2011-02-04 Created: 2011-02-04 Last updated: 2017-12-11

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TURNER, APF

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