Glucose sensor based on titanium dioxide electrode modified with potassium hexacyanoferrate(III)
2000
Abstract A potassium hexacyanoferrate(III) modified titanium dioxide electrode with immobilized glucose oxidase (GOD) was developed for measuring glucose. With this electrode, glucose concentration (1×10 −5 to 1×10 −3 M) could be determined accurately in the presence of ascorbic acid or uric acid. Glucose in human serum was determined after diluting the serum 10-fold with phosphate buffer of pH 5.5. The glucose concentrations of 70.5–72.7 mg dl −1 were determined in good agreement with those usually found in human serum.
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