Review article
https://doi.org/10.5599/jese.2028
Some progress in developing electrochemical sensors for detection of 2,4-dichlorophenoxyacetic acid based on modified carbon interfaces: a brief review
Sinchana Kudur Praveen
; Department of Chemistry, Nitte Meenakshi Institute of Technology, Bangalore, Karnataka, 560064, India
Gururaj Kudur Jayaprakash
orcid.org/0000-0003-0681-7815
; Department of Chemistry, Nitte Meenakshi Institute of Technology, Bangalore, Karnataka, 560064, India
*
Mohamed Abbas
; Electrical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
Bhavana Rikhari
; School of Engineering, Dayananda Sagar University, Bangalore Karnataka, 560068, India
Shankramma Kalikeri
; Division of Nanoscience and Technology (School of Life Sciences), JSS Academy of Higher Education and Research, Mysuru, Karnataka, India
* Corresponding author.
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.
Keywords
Herbicide; LOD; sensors; voltammetry; redox reaction; catalysis
Hrčak ID:
311011
URI
Publication date:
7.12.2023.
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