摘要
开发了1种新型的基于TiO_2-CdSe电化学发光传感平台用于检测稀土Eu~(3+)的含量.采用紫外-可见吸收和荧光光谱研究了其光学性质,并研究了当鲁米诺存在的情况下,该传感平台的阳极电化学发光(ECL)行为.实验结果表明,稀土Eu~(3+)对该体系ECL强度有很强的增敏作用,ECL信号强度与稀土Eu~(3+)的浓度成线性关系,据此建立了1种高灵敏度的测定稀土Eu~(3+)的电化学发光新方法.
In this work,a new Eu~(3+) ECL biosensor based on TiO_2-CdSe platform was prepared.The optical properties were studied by UV-Vis absorption and PL.Electrochemiluminescence behavior was studied in (pH=11) PBS containing luminal solution.The results showed that rare-earth Eu~(3+) can enhance the ECL intensity of the luminal-TiO_2-CdSe system.The ECL signal intensity depends linearly on the concentration of potency of rare-earth Eu~(3+).A novel electrochemical luminescence method with high sensitivity for the determination of rare-earth Eu~(3+) was developed.
引文
[1]赵鹏.量子点电化学发光及近红外量子点在生物传感中的应用[D].长沙:湖南大学,2015.
[2]田利,赵越,齐艳娟.[J].分子科学学报,2017,33(4):342-346.
[3]胡卫平,焦嫚,董学芝,等.[J].光谱学与光谱分析,2011(2):444-447.
[4]宋怀兵,吴艳.[J].催化学报,2017(12):2150-2159.
[5]邬洪源.纳米二氧化钛基复合纤维的制备及气敏性能研究[D].哈尔滨:黑龙江大学,2016.
[6]宋瑶瑶.稀土铕配合物改性壳聚糖荧光材料的制备与研究[D].扬州:扬州大学,2013.
[7]赵越,田利,李天娇,等.[J].分析试验室,2017,36(12):1461-1463.
[8]饶海英.三联吡啶钌电化学发光在药物分析中的应用研究[D].苏州:苏州大学,2014,
[9]朱国辉,张韬顺,郑志勇.[J].分析测试技术与仪器,2006(3):181-183.
[10]孙雪花,马红燕,齐广才,等.[J].稀土,2011(2):58-60.