Study on the photocatalytic degradation of insecticide methomyl in water

Tomašević, Anđelka; Kiss, Ernő E.; Petrović, Slobodan; Mijin, Dušan Ž.

doi:10.1016/j.desal.2010.06.019

Cited by 68 publications

(36 citation statements)

References 34 publications

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“…The results (Table 2) showed that the degradation of methomyl was much faster with ZnO than with TiO 2 . The IC results confirmed that mineralization of methomyl led to the formation of sulfate, nitrate, and ammonium ions during the all investigated processes (Tomašević et al, 2010a(Tomašević et al, , 2010bTomašević, 2011). (Tomašević, 2011 Fig.…”

Section: Methomylsupporting

confidence: 62%

“…The photo-Fenton was more efficient than Fenton, both for methomyl degradation and TOC removal. The catalytic wet peroxide oxidation of methomyl at 575.6 nm (photo-Fenton reaction) with two types of heterogeneous iron catalysts (Fe-ZSM-5 zeolite and AlFe-pillared montmorillonite) were performed (Lazar et al, 2009;Tomašević et al, 2007cTomašević et al, , 2009cTomašević et al, , 2010aTomašević et al, , 2010bTomašević, 2011). The effect of catalyst type on the reaction is shown in Fig.…”

Section: Methomylmentioning

confidence: 99%

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Photoremediation of Carbamate Residues in Water

Tomašević¹,

Gašić²

2012

Insecticides - Basic and Other Applications

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Section: Methomylsupporting

confidence: 62%

Section: Methomylmentioning

confidence: 99%

Photoremediation of Carbamate Residues in Water

Tomašević¹,

Gašić²

2012

Insecticides - Basic and Other Applications

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“…However, methomyl is highly toxic and hazardous to humans and animals [4][5][6]; it is classified as a highly hazardous compound by the World Health Organization (WHO), the US Environmental Protection Agency (US EPA), and the European Commission (EC) [7]. According to Codex, the maximum residue limits for methomyl in food and feed currently vary from 0.02 to 20 mg kg −1 [8].…”

Section: Introductionmentioning

confidence: 99%

Detection of Methomyl, a Carbamate Insecticide, in Food Matrices Using Terahertz Time-Domain Spectroscopy

Baek

Kang

Hwang

et al. 2015

J Infrared Milli Terahz Waves

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The aim of this study was to investigate the feasibility of detecting methomyl, a carbamate insecticide, in food matrices (wheat and rice flours) using terahertz time-domain spectroscopy (THz-TDS). In the frequency range 0.1-3 THz, the characteristic THz absorption peaks of methomyl at room temperature were detected at 1 (33.4 cm −1 ), 1.64 (54.7 cm −1 ), and 1.89 (63.0 cm −1 ) THz. For detailed spectral analysis, the vibrational frequency and intensity of methomyl were calculated using solid-state density functional theory to mimic molecular interactions in the solid state. Qualitatively, the simulated spectrum was in good agreement with the experimental spectrum. Analysis of the individual absorption modes revealed that all of the features in the THz spectrum of methomyl were mainly generated from intermolecular vibrations. The peak appearing at 1 THz (33.4 cm −1 ) was then selected and tested for its suitability as a fingerprint for detecting methomyl in food matrices. Its absorbance was dose-dependently distinguishable from that of wheat and rice flours. The calibration curve of methomyl had a regression coefficient of >0.974 and a detection limit of <3.74 %. Accuracy and precision expressed as recovery and relative standard deviation in interday repeatability were in the ranges 78.0-96.5 and 2.83-4.98 %, respectively. Our results suggest that THz-TDS can be used for the rapid detection of methomyl in foods, but its sensitivity needs to be improved.

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“…Methomyl, one of the carbamate insecticides, is a very toxic and hazardous compound as it can be absorbed in a variety of ways including through breathing, ingestion and skin contact [17].…”

Section: Introductionmentioning

confidence: 99%

Methomyl Detection by Inhibition of Laccase Using a Carbon Ceramic Biosensor

et al. 2011

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A sol-gel derived carbon ceramic biosensor was used for methomyl determination in vegetable extract samples based on the immobilization of laccase from Aspergillus oryzae. Esculetin was chosen as the substrate for laccase in order to measure inhibition by this pesticide. The analytical curve was linear for methomyl concentrations of 0.5 to 12.2 mM with a detection limit of 0.2 mM. The lifetime of the proposed biosensor was 60 days and the recovery from vegetable extract samples ranged from 98.0 to 104.2 %. The results using the proposed method are in agreement with those using HPLC at the 95 % confidence level.

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Study on the photocatalytic degradation of insecticide methomyl in water

Cited by 68 publications

References 34 publications

Photoremediation of Carbamate Residues in Water

Photoremediation of Carbamate Residues in Water

Detection of Methomyl, a Carbamate Insecticide, in Food Matrices Using Terahertz Time-Domain Spectroscopy

Methomyl Detection by Inhibition of Laccase Using a Carbon Ceramic Biosensor

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