无定形介孔磷酸锆固定葡萄糖氧化酶的直接电化学

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利用无定形介孔磷酸锆(ZrP)为载体,通过吸附法固定葡萄糖氧化酶(GOD),修饰玻碳(GC)电极得到GOD/ZrP/GC电极。在0.1mol·L^-1磷酸盐缓冲溶液中,利用循环伏安法研究了GOD/ZrP/GC电极的直接电化学行为和对葡萄糖的催化性能。结果表明,无定形磷酸锆ZrP为载体修饰的电极GOD/ZrP/GC其电化学反应电子转移速率快、表观覆盖量大;对葡萄糖的检测表现出较快的电流响应和较高的灵敏度,说明无定形磷酸锆更有利于GOD的固定和酶电极的直接电化学。
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