【作者】 韩金土； 王辉；

【Author】 HAN Jin-tu WANG Hui(College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000)

【机构】 信阳师范学院化学化工学院；

【摘要】 <正>本文首次利用TiO2-Gr、室温离子液体和壳聚糖相结合制备修饰电极,由于TiO2-Gr和室温离子液体具有好的导电性能及其它优良特性,两者的协同作用使得该生物传感器具有高的灵敏度、好的的稳定性和响应更多还原

【Abstract】 A modified electrode is fabricated based on TiO 2-graphene/ionic liquid/chitosan-Hemeglobin composite film modified glass carbon electrode.The direct electrochemical behavior of hemoglobin at the modified electrode was investigated by cyclic voltametry(CV).The experimental results showed that the biocomposite film can effectively improve the direct electron transfer rate and well maintain electrocatalytic activity.The concentration of H 2 O 2 showed good linear relationship with the current respond signal in the range of 20-860 μmol/L.The limit of detection was 0.1 μmol/L(S/N=3).The electrochemical sensor exhibited good stability and reproducibility.更多还原