+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Residue dissipation and dietary exposure risk assessment of methoxyfenozide in cauliflower and tea via modified QuEChERS using UPLC-MS/MS



Residue dissipation and dietary exposure risk assessment of methoxyfenozide in cauliflower and tea via modified QuEChERS using UPLC-MS/MS



Journal of the Science of Food and Agriculture 2019:



Methoxyfenozide possesses efficacy against to a variety of lepidopteron pests, including the major pests in cauliflower and tea, it is of great importance to generalize the practical use of methoxyfenozide in the field. An efficient method was developed and validated in both vegetable matrix and extract-rich matrix (cauliflower and tea) using modified QuEChERS combined with UPLC-MS/MS analysis. The recoveries in cauliflower, made tea and tea shoots range from 94.5-108.0 %, 85.0-91.6 % and 77.3-82.0 % respectively, with the relative standard deviations (RSDs) below 17.3 % for all the cases. The field results showed that methoxyfenozide dissipated in cauliflower with the half-lives (t1/2 ) at 2.5-3.5 days, and in tea with t1/2 at 1.2 days. In combination of above experimental data and statistical food intake value, the risk quotient (RQ) values were significantly lower than 1. The quantification method of methoxyfenozide in cauliflower or tea has not been established until this study. The dissipation and dietary exposure risk assessment of methoxyfenozide in cauliflower and tea were investigated in field. Methoxyfenozide dissipated rapidly in cauliflower despite of the different climates, and it dissipated faster in tea. The dietary risk of methoxyfenozide through cauliflower or tea was negligible to humans. This study not only provides guidance for the safe use of methoxyfenozide, but also serves as a reference for the establishment of maximum residue limits (MRLs) in China. This article is protected by copyright. All rights reserved.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 069583799

Download citation: RISBibTeXText

PMID: 31802504


Related references

Dissipation behavior, residue distribution and dietary risk assessment of field-incurred boscalid and pyraclostrobin in grape and grape field soil via MWCNTs-based QuEChERS using an RRLC-QqQ-MS/MS technique. Food Chemistry 274: 291-297, 2019

Determination of the Residue Behavior and Risk Assessment of Chlorfluazuron in Chinese Cabbage, Kale, Lettuce and Cauliflower by UPLC-MS/MS. International Journal of Environmental Research and Public Health 16(10):, 2019

Analysis of the dissipation kinetics of thiophanate-methyl and its metabolite carbendazim in apple leaves using a modified QuEChERS-UPLC-MS/MS method. Biomedical Chromatography 33(2): E4394, 2019

Dissipation behaviour and dietary risk assessment of boscalid, triflumizole and its metabolite (FM-6-1) in open-field cucumber based on QuEChERS using HPLC-MS/MS technique. Journal of the Science of Food and Agriculture 98(12): 4501-4508, 2018

Determination and analysis of the dissipation and residue of cyprodinil and fludioxonil in grape and soil using a modified QuEChERS method. Environmental Monitoring and Assessment 187(7): 414, 2015

Dissipation Dynamics and Dietary Risk Assessment of Kresoxim-Methyl Residue in Rice. Molecules 24(4):, 2019

Monitoring residue levels and dietary risk assessment of pymetrozine for Chinese consumption of cauliflower. Biomedical Chromatography 33(4): E4455, 2019

Dissipation behaviour, residue distribution and dietary risk assessment of tetraconazole and kresoxim-methyl in greenhouse strawberry via RRLC-QqQ-MS/MS technique. Ecotoxicology and Environmental Safety 148: 799-804, 2018

Dissipation behaviour, residue distribution and dietary risk assessment of tetraconazole and kresoxim-methyl in greenhouse strawberry via RRLC-QqQ-MS/MS technique. Ecotoxicology and Environmental Safety 148: 799-804, 2018

Dissipation kinetics, pre-harvest residue limits, and dietary risk assessment of the systemic fungicide metalaxyl in Swiss chard grown under greenhouse conditions. Regulatory Toxicology and Pharmacology 92: 201-206, 2018

Residue and dissipation dynamics of lufenuron in tomato fruit using QuEChERS methodology. Bulletin of Environmental Contamination and Toxicology 89(5): 1037-1039, 2012

Identification and characterization of matrix components in spinach during QuEChERS sample preparation for pesticide residue analysis by LC-ESI-MS/MS, GC-MS and UPLC-DAD. Journal of Food Science and Technology 55(10): 3930-3938, 2018

QuEChERS-based study on residue determination and dissipation of three herbicides in corn fields using HPLC-MS/MS. Toxicological and Environmental Chemistry 98(2): 216-225, 2016

Simultaneous Determination of 27 Pesticides in Ginseng by UPLC/MS/MS and Modified QuEChERS Procedure. Journal of Aoac International 98(3): 839-846, 2015

Simultaneous determination of 44 pesticides in tobacco by UPLC/MS/MS and a modified QuEChERS procedure. Journal of Aoac International 96(2): 422-431, 2013