双膜涂丝型葡萄糖氧化酶传感器的研究

Studies On Coated-Wire Glucose Sensors With Bilayer Polymeric Films

报告一种双膜涂丝型葡萄糖传感器的研究。通过电化学聚合,在铝丝表面修饰一层具有导电性能的聚苯胺薄膜,外层涂离子选择和葡萄糖氧化酶膜。此传感器既保持了涂丝传感器的优点,又具备较好的稳定性和重现性。

Enzyme sensors based on bilayer polymeric films and iodide-selective coated-wire electrodes are described for the determination o( glucose. The sensors consist of polyaniling films and homogeneous PVC membrane containing both the electroactive species and immobilised glucose oxidase. The sensors utilised peroxidase catalyst were immobilised in the electrode membrane, yielded a sub-nernstian calibration with a mean slops of 80mV and had a lifetime of 8 d.