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中文摘要：
通过合成具有仿生功能的石墨烯-聚多巴胺纳米材料,将其与辣根过氧化酶组装到电极表面,以对苯二酚为电子媒介体制备H2O2传感器。此修饰电极对H2O2具有良好的电催化活性,检测的线性范围为5.0×10^-7～3.3×10^-4mol/L;线性回归方程为Y=29.69x＋0.04577,相关系数为R=0.9995;检出限为3.7×10^-7mol/L（S/N=3）。
英文摘要：
A novel graphene-polydopamine nanomaterial with biomimetic functions was synthesized.The graphene-polydopamine nanomaterial was applied in the fabrication of H2O2 biosensors by using hydroquinone as electron mediator.The modified electrode exhibited good electrocatalytical activity to H2O2.The linear range was from 5.0×10-7 to 3.3×10-4 mol/L with a detection limit of 3.7×10-7 mol/L（S/N=3） and the linear correlation coefficient was 0.9995.
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