以包埋有四苯硼-扑尔敏缔合物的SiO2溶胶凝胶修饰铂盘电极,构成电位型扑尔敏药物电极.以铁氰化钾作为氧化还原探针,采用循环伏安法(CV)对电极各种修饰状态进行了表征.该电极对扑尔敏的Nernst响应范围为5.2×10-7～8.0×10-4mol/L,斜率为5.78×10-2V/pC,检出限为2.8×10-7mol/L,相关系数r=0.999,pH值适用范围为3.0～8.5.
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