Electrochemical study of fenitrothion and bifenox and their simultaneous determination using multiwalled carbon nanotube modified glassy carbon electrode

Salehzadeh, Hamid; Ebrahimi, Mohsen; Nematollahi, Davood; Salarian, Amir Ahmad

doi:10.1016/j.jelechem.2016.02.011

Cited by 57 publications

(21 citation statements)

References 22 publications

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“…The comparative results are shown in Table ST1. The Table STI clearly revealed that the fabricated sensor electrode has superior analytical performances in terms 11 of low LOD (8 nM) and wider linear response ranges (up to 1133.8 mM) than recently reported peptidenanotubes [32], cerium(IV) oxide/RGO [33], ruthenium phthalocyanine-silica/multi-walled carbon nanotubes [34], pretreated glassy carbon electrode [35], multiwalled carbon nanotubes [36] and TiO2/nafion [37] based FNTN sensors. We have only made the comparison of the sensor with recently published reports since these electrode materials have shown superior electroanalytical performance towards FNTN than their formerly published literature.…”

Section: Analytical Merits Of the Sensormentioning

confidence: 76%

“…Compared with available polarographic and chromatographic methods, electrochemical methods are widely used for sensitive detection of FNTN due to their simplicity, low-cost and high sensitivity [35]. To date, a vast number of modified electrodes have been used for sensitive and reliable detection of FNTN including graphene-based composites [32][33][34][35][36][37]. However, the fabrication of highly sensitive sensors for precise determination of FNTN, with wide linear range and low detection limit, is of interest regarding environmental safety, food safety, and human health.…”

Section: Introductionmentioning

confidence: 99%

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Novel electrochemical synthesis of cellulose microfiber entrapped reduced graphene oxide: A sensitive electrochemical assay for detection of fenitrothion organophosphorus pesticide

Velusamy

Palanisamy

Chen

et al. 2019

Talanta

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2019)Novel electrochemical synthesis of cellulose microfiber entrapped reduced graphene oxide: A sensitive electrochemical assay for detection of fenitrothion organophosphorus pesticide. Talanta, Downloaded from: http://e-space.mmu.ac.uk/622103/ Publisher: Elsevier AbstractOver the past decades, synthesis of carbohydrate polymers incorporated graphene or reduced graphene oxide has received greater attention in different disciplines owing to their unique physicochemical properties.In this context, we report a facile electrochemical synthesis of cellulose microfibers supported reduced graphene oxide and its application towards enhanced and lower potential electrochemical detection of fenitrothion. The synthesized cellulose microfibers supported reduced graphene oxide composite was further characterized using Fourier-transform infrared spectroscopy, Raman spectroscopy and high resolution scanning electron microscopy. Cyclic voltammetry studies reveal that cellulose microfibers supported reduced graphene oxide composite modified screen-printed carbon electrode exhibits a superior electroreduction ability and lower reduction potential towards fenitrothion compared to screen-printed carbon electrodes modified with graphene oxide, graphene oxide-cellulose microfibers, and reduced graphene oxide.Furthermore, cellulose microfibers supported reduced graphene oxide composite modified electrode showed 141 mV lower reduction potential towards fenitrothion than the chemically reduced graphene oxide-cellulose microfibers composite modified screen-printed carbon electrode. The effect of accumulation time, catalyst loading, scan rate and pH for the detection of fenitrothion has been studied and discussed. Differential pulse voltammetric studies show that the fabricated composite electrode can detect the fenitrothion in a wider linear response range up to 1.134 mM with a detection limit of 8 nM. To validate the proof of concept, the fabricated sensor was successfully applied for the detection of fenitrothion in different water samples.

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Section: Analytical Merits Of the Sensormentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Novel electrochemical synthesis of cellulose microfiber entrapped reduced graphene oxide: A sensitive electrochemical assay for detection of fenitrothion organophosphorus pesticide

Velusamy

Palanisamy

Chen

et al. 2019

Talanta

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“…As previously reported, cyclic voltammetry behavior of nitrobenzene depends on the potential sweep range. It does not show any oxidation or reduction peak in the potential range of 0.0–0.7 V vs Ag/AgCl. , …”

mentioning

confidence: 93%

Nitrone Synthesis via Pair Electrochemical Coupling of Nitro-Compounds with Benzyl Alcohol Derivatives

Salehzadeh

Mashhadizadeh

2019

J. Org. Chem.

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Here we report a paired electrochemical coupling of readily accessible nitro-compounds with benzyl alcohols to yield nitrone derivatives. In this work, electrochemical behavior of nitrobenzene and benzyl alcohol derivatives was studied by cyclic voltammetry and controlled potential coulommetry. Electrochemical reactions have been performed in aqueous/ethanol (or acetonitrile) solutions by employing common graphite electrodes and a simple controlled current protocol which can make this strategy more appealing than other conventional pathways.

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“…Despite the advantages of chromatography techniques, they are time‐consuming, complex and expensive. Also, immunoassay and biosensors with high specificity and sensitivity suffer from disadvantages such as being time‐consuming, requiring a labeling process and low chemical stability and high price .…”

Section: Introductionmentioning

confidence: 99%

“…These methods have some advantages such as simplicity, rapid responses, good sensitivity, and selectivity . Methyl parathion , fenitrothion and bifenox are examples of OPs that were determined successfully with electrochemical sensors. In this work, a new, inexpensive and a simple electrochemical sensor for determination of fenitrothion is proposed using electrochemical polymerization of zincon at a glassy carbon electrode (GCE).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Fenitrothion Organophosphorus Pesticide Using Polyzincon Modified‐glassy Carbon Electrode

2017

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In this paper, a glassy carbon electrode (GCE) was modified with polyzincon. The modified electrode was used as a simple, inexpensive and highly sensitive electrochemical sensor for the determination of organophosphorus pesticide fenitrothion. To fabricate the electrochemical sensor, GCE was immersed in 0.10 mmol L−1 zincon solutions at pH 7.0 and then successively scanned between −1.00 to 2.20 V (vs. Ag/AgCl) at a scan rate of 70 mV s−1 for six cycles. The morphology and structure of the polyzincon were studied with atomic force microscopy and scanning electron microscopy. A comparison of the electrochemical behavior of fenitrothion on the unmodified and polyzincon modified‐GCE showed that in the modified electrode not only the oxidation peak current increased, but also the overpotential shifted to lower one. The experimental conditions such as sample solution pH, accumulation potential, and time were optimized. The differential pulse voltammetric responses of fenitrothion at potential about −0.60 V was used for the determination of fenitrothion. The peak current increased with increasing the concentration of fenitrothion in the range of 5 to 8600 nmol L−1 with a detection limit of 1.5 nmol L−1. Finally, the electrochemical sensor was used for the analysis of fenitrothion in water and fruit samples.

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Electrochemical study of fenitrothion and bifenox and their simultaneous determination using multiwalled carbon nanotube modified glassy carbon electrode

Cited by 57 publications

References 22 publications

Novel electrochemical synthesis of cellulose microfiber entrapped reduced graphene oxide: A sensitive electrochemical assay for detection of fenitrothion organophosphorus pesticide

Novel electrochemical synthesis of cellulose microfiber entrapped reduced graphene oxide: A sensitive electrochemical assay for detection of fenitrothion organophosphorus pesticide

Nitrone Synthesis via Pair Electrochemical Coupling of Nitro-Compounds with Benzyl Alcohol Derivatives

Electrochemical Determination of Fenitrothion Organophosphorus Pesticide Using Polyzincon Modified‐glassy Carbon Electrode

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