U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375, USA.
Sensors (Basel). 2020 Jul 18;20(14):4006. doi: 10.3390/s20144006.
The electrochemical response of multilayer epitaxial graphene electrodes on silicon carbide substrates was studied for use as an electrochemical sensor for seawater samples spiked with environmental contaminants using cyclic square wave voltammetry. Results indicate that these graphene working electrodes are more robust and have lower background current than either screen-printed carbon or edge-plane graphite in seawater. Identification algorithms developed using machine learning techniques are described for several heavy metals, herbicides, pesticides, and industrial compounds. Dose-response curves provide a basis for quantitative analysis.
研究了碳化硅衬底上多层外延石墨烯电极的电化学响应，将其作为电化学传感器，用于使用循环方波伏安法检测海水中环境污染物的电化学传感器。结果表明，与丝网印刷碳或边缘平面石墨相比，这些石墨烯工作电极在海水中更坚固，背景电流更低。还描述了使用机器学习技术开发的几种重金属、除草剂、杀虫剂和工业化合物的识别算法。剂量反应曲线为定量分析提供了依据。
