【摘要】 采用TiO2溶胶-凝胶法在丝网印刷电极上制备了纳米六氰合铁酸铜修饰电极。研究了修饰电极的电化学性质。该电极对H2O2的电氧化过程有明显的催化作用。电流密度较常规六氰合铁酸铜化学修饰电极提高约3倍。通过测量该氧化电流可以对1.0×10-6~6×10-5mol/L H2O2进行测定。更多还原

【Abstract】 A screen-printed electrode modified by titanic sol-gel chemically doping with copper hexacyanoferrate nanoparticles as mediator was developed.The sol-gel was prepared using tetrabutyl titanate,potassium ferricyanide and copper sulphate,and then was pritnted on the surface of a glassy carbon electrode.The（electrode） exhibits higher sensitive electrocatalytic oxidation of hydrogen peroxide,and exhibits a linear（response） to H₂O₂ with the range of 1.0×10^-6-6×10^-5mol/L,which is more sensitive than normal copper hexacyanoferrate modified electrode by electro-polymerization.The characterization of the electrocatalysis for hydrogen peroxide was investigated.Hydrogen peroxide content in sterilize solution samples was determined by voltammetric method using this modified electrode.更多还原