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基于普鲁士蓝/碳纳米管纳米棒修饰电极用于有机磷农药检测的研究

, PP. 243-247

Keywords: 普鲁士蓝-碳纳米管(PB@MWCNTs)纳米棒,有机磷农药,呋喃丹,乙酰胆碱酯酶

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Abstract:

通过在碳纳米管(MWCNTs)表面原位自发还原形成普鲁士蓝纳米颗粒(PB),制备PB包覆的MWCNTs(PB@MWCNTs)纳米棒,并以壳聚糖(CS)为交联剂,制备了有机磷农药电流型乙酰胆碱酯酶(AChE)生物传感器.实验表明,PB@MWCNTs纳米棒独特的纳米结构,增强了PB稳定性,加快了电子传递的速率,保持了乙酰胆碱酯酶(AChE)活性.制备的传感器对有机磷农药(OPs)呋喃丹的检测具有检测限低3nmol/L\,灵敏度高和使用寿命长等优点.

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