Pesticide Chemistry and Risk Assessment

Tsipi, Despina; Botitsi, Helen; Economou, Anastasios

doi:10.1002/9781119070771.ch1

Cited by 11 publications

(2 citation statements)

References 65 publications

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“…This procedure is long and cumbersome to be used routinely, so the EFSA proposed in 2011 an alternative definition of prochloraz residue for monitoring purposes that enables avoiding the hydrolysis step and performing the analysis by liquid chromatography–mass spectrometry (LC-MS), as follows: “sum of prochloraz and its metabolites BTS 44595 and BTS 44596, expressed as prochloraz” . On the other hand, the inclusion of only two major metabolites of prochloraz in the definition was influenced by the availability of analytical standards, because only BTS 44595 and BTS 44596 were commercially available by the time of the proposal . The main advantage of the use of LC-MS/MS for prochloraz residue analysis over the GC-MS method is that a straightforward multiresidue method can be used for monitoring prochloraz together with other pesticides.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Structural Characterization of a Ubiquitous Transformation Product (BTS 40348) of Fungicide Prochloraz

Ortega

Casas

Marchal-Ingrain

et al. 2019

J. Agric. Food Chem.

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Prochloraz is a widely used imidazole fungicide that has to be analyzed together with its metabolites or transformation products for food safety monitoring purposes in the European Union. Although the focus in food of plant origin has been set on metabolites BTS 44595 and BTS 44596, we consider relevant the study of BTS 40348 metabolite, too, because it has been detected in both raw and processed foods based on citrus fruits in the EU. Metabolite BTS 40348 should be monitored in surface water due to its ecotoxicological effects. In this work, the synthesis and structural characterization of BTS 40348 metabolite of fungicide prochloraz is presented, because the structure is closely related to the chemistry and biological activity of the substance. Characterization using 13 C and 1 H NMR, infrared (IR), and Raman spectroscopy is detailed, together with confirmation by electrospray mass spectrometry analysis.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Structural Characterization of a Ubiquitous Transformation Product (BTS 40348) of Fungicide Prochloraz

Ortega

Casas

Marchal-Ingrain

et al. 2019

J. Agric. Food Chem.

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“…396/2005. Methods for multiclass pesticide analysis based on mass spectrometry (MS), which allows this type of detection, have recently gained considerable attention from researchers, as this technique is easy and more reliable in terms of confirmation and identification. The usage of GC-MS for multiresidue pesticides analysis commenced in 1990 and is now a standard method for the quantification and identification of analytes in complex matrices .…”

Section: Introductionmentioning

confidence: 99%

Application of Hydrophobic Magnetic Nanoparticles as Cleanup Adsorbents for Pesticide Residue Analysis in Fruit, Vegetable, and Various Soil Samples

Hubetska

Kobylinska

Menéndez

2020

J. Agric. Food Chem.

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A clean-up procedure based on hydrophobic magnetic nanoparticles for QuEChERS extraction followed by GC-MS method for the simultaneous determination of 16 organochlorine pesticides was developed. The type and amount of clean-up adsorbents (C18/GCB/Fe 3 O 4 /Fe 3 O 4 @Triton), the volume and polarity of the extraction solvent were optimized. The method was validated according to SANTE/11813/2017 and ICH/2005/Q2/R1 guidelines. Spiked-sample recoveries of 84 -108% with RSD below 8% were obtained for all the tested pesticides in strawberry. Quantification was carried out using matrix-matched calibration plots, which displayed good linearity (R 2 > 0.99), the limits of quantification being less than the maximum residue limits (MRL) for food. The elaborated procedure with satisfactory results was applied in to determine the pesticides in fruit, vegetable (strawberries, avocadoes, watermelons, radishes, and flesh kiwis) and soil (agricultural, urban and lab-made) samples. The most frequentlyfounded pesticide residues were: 4,4 4, lindane and 4, cases were below MRL. The highest concentration of 4,4'-DDT was founded in agricultural and lab-made soils.

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Modified QuEChERS Method for Multiresidue Determination of Pesticides in Pecan Nuts by Liquid Chromatography Tandem Mass Spectrometry

et al. 2020

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Pesticide Chemistry and Risk Assessment

Cited by 11 publications

References 65 publications

Synthesis and Structural Characterization of a Ubiquitous Transformation Product (BTS 40348) of Fungicide Prochloraz

Synthesis and Structural Characterization of a Ubiquitous Transformation Product (BTS 40348) of Fungicide Prochloraz

Application of Hydrophobic Magnetic Nanoparticles as Cleanup Adsorbents for Pesticide Residue Analysis in Fruit, Vegetable, and Various Soil Samples

Modified QuEChERS Method for Multiresidue Determination of Pesticides in Pecan Nuts by Liquid Chromatography Tandem Mass Spectrometry

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