Maltepe University, Dept. of Electrical & Electronics Engineering, Istanbul, Turkey; CONSENS, Maltepe University Research Center, Istanbul, Turkey.
Istanbul University-Cerrahpasa, Dept. of Chemistry, Istanbul, Turkey.
Food Chem. 2022 Mar 15;372:131267. doi: 10.1016/j.foodchem.2021.131267. Epub 2021 Oct 1.
In this study, reduced graphene oxide (rGO) was prepared using a green ultrasonic microwave assisted method and investigated rGO based non-enzymatic electrochemical sensor for detecting a synthetic fungicide as a propamocarb (PM) pesticide. The rGO-based sensor exhibited rapid response within 1 min, low detection limit of 0.6 μM and wide linear range of (1-5) μM with a high sensitivity of 101.1 μAμM cm for PM. Besides this, the sensor detected the propamocarb pesticide on the real cucumber sample with high sensitivity in the concentration range of (1-5) μM within a 1-minute cycle. The sensor is highly selective against propamocarb pesticide. The prepared non-enzymatic electrochemical sensor exhibited high sensitivity, high selectivity, reproducibility, and rapid response.
在这项研究中，使用绿色超声微波辅助法制备还原氧化石墨烯（rGO），并研究了基于 rGO 的非酶电化学传感器，用于检测一种合成杀菌剂作为多菌灵（PM）农药。基于 rGO 的传感器在 1 分钟内表现出快速响应，检测限低至 0.6 μM，线性范围宽（1-5）μM，对 PM 的灵敏度高达 101.1 μAμM cm。此外，该传感器在 1 分钟的循环时间内，在（1-5）μM 的浓度范围内对实际黄瓜样品中的多菌灵农药进行了高灵敏度检测。该传感器对多菌灵农药具有高度选择性。所制备的非酶电化学传感器表现出高灵敏度、高选择性、重现性和快速响应。
