4.6 Article

The Disappearance Behavior, Residue Distribution, and Risk Assessment of Kresoxim-Methyl in Banana (Musa nana Lour.) Based on a Modified QuEChERS Procedure Using HPLC-MS/MS

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FRONTIERS IN ENVIRONMENTAL SCIENCE
卷 10, 期 -, 页码 -

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FRONTIERS MEDIA SA
DOI: 10.3389/fenvs.2022.853033

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kresoxim-methyl; banana and soil; dissipation behavior; residue distribution; risk assessment

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A modified-QuEChERS method was developed and validated for the determination of kresoxim-methyl in banana and soil using HPLC-MS/MS. The dissipation behavior, residue distribution, and risk assessment of kresoxim-methyl in banana were investigated. The results showed a low dietary risk of kresoxim-methyl in banana to humans, indicating the importance of proper and scientific usage of this formulation.
A modified-QuEChERS method to determine kresoxim-methyl in banana and soil was developed and validated via high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The dissipation behavior, residue distribution, and risk assessment of kresoxim-methyl in banana were further investigated based on this method. The dissipation behavior of kresoxim-methyl in banana and soil was described by using first-order kinetics and its half-life, 4.8-5.7 days and 5.5-6.5 days, respectively. The concentrations of kresoxim-methyl were 0.03-0.08 mg kg(-1), 0.06-0.17 mg kg(-1), and <0.01 mg kg(-1) for a whole banana, peel, and pulp, respectively, on the basis of spraying three times the recommended dosage and pre-harvest interval (PHI, 42 days). The results showed that the risk quotient of kresoxim-methyl in banana to people exhibited an acceptable low dietary risk. This current study could help in guiding the scientific and proper usage of this formulation.

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