将镍粒子表面功能化,合成了磁性纳米铁氰化镍(NiHCF)粒子,制备了磁性NiHCF修饰磁控玻碳电极.在pH =7.4的磷酸盐缓冲溶液中,磁性NiHCF纳米粒子修饰电极对水合肼氧化有显著的催化作用,NiHCF的氧化峰电流与水合肼浓度在0～1.29×10-4 moL/L范围内呈良好的线性关系(安培法),检出限为2.1×10-8mol/L.研究了磁性NiHCF粒子修饰电极对水合肼的电化学响应以及电极的性能,并将其应用于水样中肼的测定.该修饰电极具有灵敏度高、选择性好、电极易更新、稳定性好和制作简单等优点.
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