纳米棒
多菌灵
检出限
电化学气体传感器
电极
电化学
循环伏安法
吸附
降级(电信)
污染物
化学
材料科学
纳米技术
分析化学(期刊)
环境化学
色谱法
有机化学
杀菌剂
电子工程
生物
工程类
物理化学
植物
作者
Davalasab Ilager,Hyungtak Seo,Shankara S. Kalanur,Nagaraj P. Shetti,Tejraj M. Aminabhavi
标识
DOI:10.1016/j.jenvman.2020.111611
摘要
In the present-day scenario, it is necessary to establish more flexible, effective and selective analytical methods that are easy to operate and less expensive. Cyclic voltammetry (CV) can be a useful technique to assess minute quantity of pollutants and in this work, an effort has been made to detect the trace quantification from the environmental samples. Herein, electrochemical sensor was fabricated using tungsten oxide nanorod (WO3·0.33H2O) for sensitive detection of fungicide, carbendazim (CBZ). Under optimal conditions, while studying the effect of pH on peak current, the highest peak current was observed at pH 4.2. The degradation of CBZ followed the mixed diffusion-adsorption controlled and quasi-reversible processess at the WO3·0.33H2O/GC electrode surface. Using WO3·0.33H2O/GCE sensor in SWV provided the lowest limit of detection (LOD) and limit of quantification (LOQ) values of 2.21 × 10−8 M and 7.37 × 10−8 M, respectively over the concentration ranges of 1.0 × 10−7 M to 2.5 × 10−4 M. The proposed method demonstrates potential applicability of the fabricated sensor for soil and water samples analysis in the management of creating a benign environment.
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