Some progress in developing electrochemical sensors for detection of 2,4-dichlorophenoxyacetic acid based on modified carbon interfaces: a brief review

IF 2.9 Q2 ELECTROCHEMISTRY
Sinchana Kudur Praveen, Gururaj Kudur Jayaprakash, Mohamed Abbas, Bhavana Rikhari, Shankramma Kalikeri
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Abstract

The herbicide 2,4-dichlorophenoxyacetic acid (2,4-DPAA) is commonly used in agricultural practices. Unfortunately, it has a high toxicity level and is known to be a carcinogenic substance. Therefore, developing an analytical technique capable of detecting this com­pound is crucial. Electrochemical methods offer a viable solution for the rapid and on-site analysis of 2,4-DPAA residues in real samples. The detection of 2,4-DPAA can be achieved through electrochemical redox electron transfer reactions, making voltammetry an effective approach. Various studies have explored the use of carbon electrodes, such as glassy carbon electrodes (GCE), carbon paste electrodes (CPE), and screen-printed electro­des (SPE), for voltammetric detection of 2,4-DPAA. However, researchers have encountered challenges in detecting 2,4-DPAA using these carbon electrodes. Consequently, modifi­cations have been made to the carbon materials by incorporating chitosan hierarchical porous silica, Fe3O4-polyaniline nanocomposites, silver, manganese oxide nano­particles, alizarin yellow R polymer, hierarchical porous calcium phosphate, and molecularly im­printed polypyrrole with TiO2 nanotubes. In this comprehensive review, we have examined the effectiveness of each modified electrode, considering factors such as the limit of detection, precise linear range, and recovery rate for detecting 2,4-DPAA in real samples.
基于改性碳界面的2,4-二氯苯氧乙酸电化学传感器的研究进展
除草剂2,4-二氯苯氧乙酸(2,4- dpaa)是农业实践中常用的除草剂。不幸的是,它的毒性很高,被认为是一种致癌物质。因此,开发一种能够检测这种化合物的分析技术是至关重要的。电化学方法为实际样品中2,4- dpaa残留的快速现场分析提供了可行的解决方案。2,4- dpaa的检测可以通过电化学氧化还原电子转移反应来实现,使伏安法成为一种有效的方法。各种研究已经探索了使用碳电极,如玻璃碳电极(GCE),碳糊电极(CPE)和丝网印刷电极(SPE),用于伏安检测2,4- dpaa。然而,研究人员在使用这些碳电极检测2,4- dpaa时遇到了挑战。因此,将壳聚糖分层多孔二氧化硅、fe3o4 -聚苯胺纳米复合材料、银、氧化锰纳米颗粒、芹菜素黄R聚合物、分层多孔磷酸钙和带有TiO2纳米管的分子印迹聚吡咯对碳材料进行了改性。在这篇综合综述中,我们考察了每种修饰电极的有效性,考虑了检测限、精确线性范围和检测实际样品中2,4- dpaa的回收率等因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.60
自引率
27.30%
发文量
90
审稿时长
6 weeks
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