石墨相氮化碳的阳极电致化学发光行为及其对芦丁的传感检测。
Anodic electrogenerated chemiluminescence behavior of graphite-like carbon nitride and its sensing for rutin.
机构信息
College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China.
出版信息
Anal Chem. 2013 Mar 5;85(5):2601-5. doi: 10.1021/ac303263n. Epub 2013 Feb 15.
In this paper, the anodic electrogenerated chemiluminescence (ECL) behavior of graphite-like carbon nitride (g-C3N4) is studied using cyclic voltammetry with triethanolamine (TEA) as a coreactant. The possible anodic ECL response mechanism of the g-C3N4/TEA system is proposed. Furthermore, it is observed that the anodic ECL signal can be quenched efficiently in the presence of rutin, on the basis of which a facile anodic ECL senor for the determination of rutin is developed. This ECL sensor is found to have a linear response in the range of 0.20-45.0 μM and a low detection limit of 0.14 μM (at signal-to-noise of 3). These results suggest that semiconductor g-C3N4 has great potential in extending the application in the ECL field as an efficient luminophore.
本文采用循环伏安法，以三乙醇胺（TEA）为共反应物，研究了类石墨相氮化碳（g-C3N4）的阳极电致化学发光（ECL）行为。提出了g-C3N4/TEA 体系可能的阳极 ECL 响应机制。此外，还观察到芦丁的存在可以有效地猝灭阳极 ECL 信号，在此基础上，开发了一种用于测定芦丁的简便阳极 ECL 传感器。该 ECL 传感器在 0.20-45.0 μM 范围内具有线性响应，检测限低至 0.14 μM（信噪比为 3）。这些结果表明，半导体 g-C3N4 作为一种高效发光体，在扩展其在 ECL 领域的应用方面具有巨大潜力。
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