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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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电氧化异丙肾上腺素的纳米复合电催化剂:用作传感器
DOI: 10.1016/S1872-2067(15)60918-4, PP. 1273-1279
Keywords: 电催化剂,金纳米粒子,自组装,异丙肾上腺素,传感器
Abstract:
？在金纳米粒子(AuNPs)上经苯硫酚衍生物(3,4二羟基苯基-偶氮-苯硫酚,DAT)自组装制得了一种新型纳米复合物,用于修饰玻璃碳电极(GCE/AuNP-DAT).采用循环伏安法研究了该新型电极的性质,并将其用作异丙肾上腺素(IP)电催化剂,考察了该纳米复合物的电催化活性,从而得到反应机理和催化反应速率常数.由于GCE/AuNP-DAT电极对尿酸氧化没有电催化活性,因此可将IP的氧化信号从该改进电极中分离出来,从而排除了尿酸对IP测定的干扰.该电极可作为传感器,当用于差动脉冲伏安法测定IP时,线性动态范围为1.0-1500.0μmol/L,检测极限为0.46μmol/L.
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