A Simple but Highly Sensitive and Selective Electrochemical Sensor for Determination of Dopamine Based on Langmuir-Blodgett Film of Calix[4]resorcinarene
A Simple but Highly Sensitive and Selective Electrochemical Sensor for Determination of Dopamine Based on Langmuir-Blodgett Film of Calix[4]resorcinarene
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DOI：
10.1149/2.0141606jes
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发表时间：
2016
影响因子：
3.9
通讯作者：
Fei Wang;Yanjuan Wu;Hao Ma;Bei Li;B. Ye
中科院分区：
文献类型：
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作者：
Fei Wang;Yanjuan Wu;Hao Ma;Bei Li;B. Ye
以杯[4]间苯二酚芳烃LB膜修饰玻碳电极（GCE），构建了一种新的电化学传感器，并将其用于多巴胺（DA）的灵敏测定。这种新型的传感器表现出显着的响应DA从杯[4]间苯二酚芳烃LB膜（高超分子识别和富集能力）和电化学预处理的GCE（大表面积和高活性位点）的协同效应。此外，维生素C（AA）和尿酸（UA）共存时，DA在该传感器上的响应不受干扰。在选择性条件下，DA的浓度在5.0× 10− 8 ~ 1.0× 10− 5 mol L− 1范围内与响应电流呈线性关系，检测限为1.5× 10− 8 mol L− 1，定量限为5.0× 10− 8 mol L− 1。同时，该传感器具有良好的稳定性、选择性和重现性。
In this work, a new electrochemical sensor was structured based on calix [4] resorcinarene LB film modified glassy carbon electrode (GCE) and used for sensitive determination of dopamine (DA). This new sensor displayed a significant response to DA from the synergetic effect of calix [4] resorcinarene LB film (high supramolecular recognition and enrichment capability) and electrochemically pretreated GCE (large surface area and high active sites). Moreover, the response of DA at this sensor was not interfered by the coexistence of ascorbic acid (AA) and uric acid (UA). Under the selective conditions, the response currents were linear relationship with DA concentrations in range of 5.0× 10− 8–1.0× 10− 5 mol L− 1 with a limit of detection of 1.5× 10− 8 mol L− 1 and a limit of Quantity of 5.0× 10− 8 mol L− 1. At the same time, the new sensor showed good stability, selectivity and reproducibility.