Electrochemical determination of paraquat in potato, lemon, orange and natural water samples using sensitive-rich clay carbon electrode

Kasmi, Siham; Lahrich, S.; Farahi, A.; Zriouil, Mohammed; Ahmamou, M.; Bakasse, M.; Mhammedi, M.A. El

doi:10.1016/j.jtice.2015.06.039

Cited by 19 publications

(13 citation statements)

References 31 publications

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“…Therefore, the paraquat signal is maximal in PB (pH = 8.5), which is similar to the previous research. 35 Consequently, PB, when its pH value was adjusted to 8.5, was used in all subsequent work. Adsorption increases with decreasing acidity because the herbicide paraquat exists in its cationic form in water (p K a = 11).…”

Section: Resultsmentioning

confidence: 99%

Fabricated Electrochemical Sensory Platform Based on the Boron Nitride Ternary Nanocomposite Film Electrode for Paraquat Detection

et al. 2019

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Hexagonal boron nitride (BN), an effective diffusion material for mass transport, was functionalized with molybdenum disulfide (MoS2) and Au nanoparticles (Au NPs). Then, the working electrodes with developed nanomaterials were applied to construct an electrochemical paraquat sensor. BN was prepared using a solid-state synthesis method combined with solvent-cutting. The electrochemical properties of the BN/MoS2/Au NP-based glassy carbon electrode (GCE) were investigated using differential pulse voltammetry and cyclic voltammetry. An excellent response signal to paraquat was found from 0.1 to 100 μM with a limit of detection of 0.074 μM, and it had acceptable reproducibility (relative standard deviation = 2.99%, n = 5) and good anti-interference ability. The modified GCE showed superior performance owing to the synergistic effects among all three given nanomaterials. With the proposed method, paraquat in grass samples from an orchard was then investigated. The results of the electrochemical analysis agreed with those of experiments and obtained a 96.28% confidence level via high-performance liquid chromatography, exhibiting relatively high stability. Therefore, the fabricated sensor can be a candidate for the determination of paraquat.

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Section: Resultsmentioning

confidence: 99%

Fabricated Electrochemical Sensory Platform Based on the Boron Nitride Ternary Nanocomposite Film Electrode for Paraquat Detection

et al. 2019

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“…However, these approaches have drawbacks such as being time consuming, needing highly skilled personnel, and requiring the use of expensive instruments. Therefore, advanced approaches for the determination of pesticides were reported using sensor-based techniques such as electrochemical impedance spectroscopy (EIS) ( Lahrich et al, 2016 ), differential pulse voltammetry (DPV) ( Farahi et al, 2014 , 2015 , 2016 ), square wave anodic stripping voltammetry (SWASV) ( El Harmoudi et al, 2013 ), differential pulse anodic stripping voltammetry (DPASV) ( Elkasmi et al, 2016 ), and square wave voltammetry (SQW) ( Ajermoun et al, 2019 , 2020 ; El Harmoudi et al, 2017 ; El Mhammedi et al, 2010 ; El Mhammedi et al, 2007a , 2007b ; El Mhammedi et al, 2008 ; El Mhammedi et al, 2009 ). These electrochemical techniques are very sensitive and offer several advantages including low-cost, simplicity, rapid operation and low detection limits compared to the conventional chromatographic methods ( Laghrib et al, 2020 ).…”

Section: Analytical Techniques For Fbd Detection In Food Matricesmentioning

confidence: 99%

Extraction and determination of flubendiamide insecticide in food samples: A review

Aghris

Alaoui²,

Laghrib

et al. 2022

Current Research in Food Science

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“…The electrode surface modification has strong influence on the sensing performance of the electrochemical sensor [17]. Nanoclays have been applied as surface modification materials to improve the sensing performance and, since the 1990s, CLME have been extensively studied, principally, their electron transfers' phenomenon [18][19][20][21]. For example, the recent review by Goda et al summarized the works on halloysite nanotubes' (HNTs') surface engineering and application as electrochemical sensor [22].…”

Section: Sensorsmentioning

confidence: 99%

New Trends in Nanoclay-Modified Sensors

et al. 2021

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Nanoclays are widespread materials characterized by a layered structure in the nano-scale range. They have multiple applications in diverse scientific and industrial areas, mainly due to their swelling capacity, cation exchange capacity, and plasticity. Due to the cation exchange capacity, nanoclays can serve as host matrices for the stabilization of several molecules and, thus, they can be used as sensors by incorporating electroactive ions, biomolecules as enzymes, or fluorescence probes. In this review, the most recent applications as bioanalyte sensors are addressed, focusing on two main detection systems: electrochemical and optical methods. Particularly, the application of electrochemical sensors with clay-modified electrodes (CLME) for pesticide detection is described. Moreover, recent advances of both electrochemical and optical sensors based on nanoclays for diverse bioanalytes’ detection such as glucose, H2O2, organic acids, proteins, or bacteria are also discussed. As it can be seen from this review, nanoclays can become a key factor in sensors’ development, creating an emerging technology for the detection of bioanalytes, with application in both environmental and biomedical fields.

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Electrochemical determination of paraquat in potato, lemon, orange and natural water samples using sensitive-rich clay carbon electrode

Cited by 19 publications

References 31 publications

Fabricated Electrochemical Sensory Platform Based on the Boron Nitride Ternary Nanocomposite Film Electrode for Paraquat Detection

Fabricated Electrochemical Sensory Platform Based on the Boron Nitride Ternary Nanocomposite Film Electrode for Paraquat Detection

Extraction and determination of flubendiamide insecticide in food samples: A review

New Trends in Nanoclay-Modified Sensors

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