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Herein we report a novel, accurate and cost-effective gas chromatography method for the determination of average deposits of profenofos on green pea and cucumber following good agricultural practices. Additionally the risk assessment, dissipation and waiting period for profenofos were determined. The average initial deposits (2 h after spraying) of profenofos in/on green pea and cucumber were 3.41 and 3.62 mg kg-1 respectively following two applications at a 10 day interval of profenofos 50EC formulation. Profenofos residues on both of the substrates were below the detection limit of 0.05 mg kg-1 after 20 days at the recommended dosage. For risk assessment studies, the 20th day will be safe for consumers for consumption of green peas. The gas chromatography method was validated according to the SANTE guidelines using the various analytical parameters: linearity, accuracy, detection and quantification limits. The developed method is simple, selective and repeatable and can be extended for profenofos-based standardization of pesticide formulations for green pea/cucumber and their use as pesticides. © 2022 John Wiley & Sons, Ltd.

Citation

Ashraf A Wani, Alamgir A Dar, Ishrat Jan, Malik Mukhtar, Khurshid A Sofi, G I Hassan, Javid A Sofi. Dissipation and gas chromatographic method for the determination of profenofos residues in/on green pea and cucumber. Biomedical chromatography : BMC. 2022 Apr;36(4):e5335

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PMID: 35023162

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