Manikandan Ramalingam, Yoon Jang-Hee, Chang Seung-Cheol
Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
Busan Centre, Korea Basic Science Institute, Busan, 46742, Republic of Korea.
Chemosphere. 2023 Dec;344:140231. doi: 10.1016/j.chemosphere.2023.140231. Epub 2023 Sep 28.
Heavy metal ions (HMIs) have become a significant contaminant in recent years. The increase in heavy metal pollution is a serious situation, requiring progressively robust, fast sensing, highly sensitive, and suitable techniques for heavy metal detection. Compared to other classical analytical methods, electroanalytical techniques, especially stripping voltammetric techniques with modified screen-printed electrodes (SPEs), have several advantages, such as fast sensing, great sensitivity, specificity, and long-time stability. Therefore, these techniques are more suitable for HMI detection. In this review, the nanostructured materials used to coat SPEs for the electrochemical determination of HMI are summarized. Additionally, the electrode fabrication method, modification steps, and electroanalytical study of these materials are systematically discussed. Hence, this review will support the researchers in precisely evaluating the electrochemical HMIs detection through highly sensitive stripping voltammetric techniques using SPE modified with nanostructured carbon and their allotropes, metal, metal oxides and their nanocomposites as sensor materials. Moreover, modified electrodes real time detection of HMIs in different food and environmental samples were briefly discussed.
近年来，重金属离子已成为一种重要污染物。重金属污染的加剧是一个严峻的形势，需要日益强大、快速传感、高度灵敏且适用的重金属检测技术。与其他传统分析方法相比，电分析技术，特别是采用修饰丝网印刷电极（SPE）的溶出伏安法技术，具有诸多优势，如快速传感、高灵敏度、特异性和长期稳定性。因此，这些技术更适合用于重金属离子检测。在本综述中，总结了用于修饰丝网印刷电极以电化学测定重金属离子的纳米结构材料。此外，还系统地讨论了这些材料的电极制备方法、修饰步骤和电分析研究。因此，本综述将有助于研究人员通过使用纳米结构碳及其同素异形体、金属、金属氧化物及其纳米复合材料修饰的丝网印刷电极，以高灵敏度溶出伏安法技术精确评估电化学检测重金属离子。此外，还简要讨论了修饰电极对不同食品和环境样品中重金属离子的实时检测。
