Institute of Materials Science & Devices, Suzhou University of Science and Technology, Suzhou, China.
Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, China.
Luminescence. 2019 Nov;34(7):666-672. doi: 10.1002/bio.3649. Epub 2019 Jun 26.
An electrochemiluminescence (ECL) sensor based on reduced graphene oxide-CdTe quantum dots (RGO-CdTe QDs) composites for detecting copper ion (Cu ) was proposed. The ECL behaviours of the RGO-CdTe QD modified electrode were investigated with H O as the co-reactant. Quantitative detection of Cu was realized as Cu could effectively quench the ECL signal of the RGO-CdTe QDs. A wide linear range of 1.00 × 10 to 1.00 × 10 M (R = 0.9953) was obtained under optimized conditions, and a detection limit (S/N = 3) was achieved of as low as 3.33 × 10 M. The proposed sensor also exhibited good stability and selectivity for the detection of copper ions. Finally, the analytical application of the proposed sensor was also evaluated using river water.
基于还原氧化石墨烯-碲化镉量子点（RGO-CdTe QDs）复合材料的电化学发光（ECL）传感器被提出用于检测铜离子（Cu ）。研究了以 H O 为共反应物时 RGO-CdTe QD 修饰电极的 ECL 行为。由于 Cu 能够有效地猝灭 RGO-CdTe QDs 的 ECL 信号，因此实现了 Cu 的定量检测。在优化条件下，获得了 1.00×10 到 1.00×10 的宽线性范围（R=0.9953），检测限（S/N=3）低至 3.33×10 。该传感器还表现出良好的稳定性和选择性，可用于检测铜离子。最后，还使用河水评估了所提出传感器的分析应用。
