检出限
电化学气体传感器
电化学
材料科学
吸附
傅里叶变换红外光谱
芴酮
氧化还原
化学工程
化学
纳米技术
电极
无机化学
有机化学
色谱法
复合材料
物理化学
工程类
聚合物
芴
作者
Neha Neha,Ranjeet Kaur,Jyoti Jyoti,Shweta Rana,Navneet Kaur
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2023-05-01
卷期号:170 (5): 057508-057508
被引量:2
标识
DOI:10.1149/1945-7111/acd3b7
摘要
A novel synthetically accessible electrochemical sensor has been developed for the detection of chlorpyrifos (CPS) at a very minimal level by utilizing a glassy carbon electrode (GCE) modified with RGO functionalized fluorenone derivative (RGO-NS). The structural and morphological aspects of the derived composite were assessed by FTIR, XRD, FESEM, DFT with in-depth electrochemical analysis. The fluorenone appended with distinct functionalities has supported the reversible redox reactions of CPS, thus, boosting the specificity of the sensor. The design of the electrochemical sensors involved functionalization of RGO possessing high adsorption capacity, which has further amplified the electrochemical sensitivity. The sensing response has been credited to the reduction associated with hydrogen ion which on addition of CPS gets quenched due to catalytic reaction between the two. The synergy has resulted in the low detection limit of 8.89 ng ml −1 for CPS along with reliable detection of CPS in soil samples without spiking. The framework has the excellent future prospects in the practical management of pernicious pesticides usually employed in agricultral fields and their residues on food products posing a serious danger to human health.
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