Summary
An amperometric biosensor for glucose was constructed in a one-step procedure by the electropolymerization of o-toluidine in the presence of glucose oxidase on Pt substrates in KCl aqueous electrolyte at a potential of 0.5 V vs Ag / AgCl. The amperometric responses of the prepared polymeric biosensor to the glucose were measured at a potential of 0.7 V in PBS solution. Results showed that this polymeric sensor exhibited a fast amperometric response time (4–5 s) and a linear range up to 6 mM glucose with poor stability. Also, it was seen that biosensor responded successfully to glucose injections in the presence of some interfering species such as lactose, sucrose and urea.
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Received: 27 January 1999/Revised version: 18 May 1999/Accepted: 18 May 1999
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Ekinci, E. Preparation and sensor properties of poly (o-toluidine) film. Polymer Bulletin 42, 693–699 (1999). https://doi.org/10.1007/s002890050521
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DOI: https://doi.org/10.1007/s002890050521