Amperometric Enzyme Based Biosensor For the Detection of Xanthine Via Superoxide
- 1 April 1989
- journal article
- Published by Taylor & Francis in Analytical Letters
- Vol. 22 (5), 1047-1055
- https://doi.org/10.1080/00032718908051391
Abstract
An amperometric enzyme modified carbon paste electrode for the detection of xanthinc by the xanthine oxidase catalyzed reaction is described. the product of the enzyme reaction monitored is the highly unstable radical superoxide, detected at O mV (vs SCE) poised potential. A dual working electrode configuration consisting of an enzyme modified carboa paste electrode and an unmodified glassy carbon electrode are utilized for this purpose.Keywords
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