PMID- 31802504
OWN - NLM
STAT- MEDLINE
DCOM- 20201013
LR  - 20201013
IS  - 1097-0010 (Electronic)
IS  - 0022-5142 (Linking)
VI  - 100
IP  - 6
DP  - 2020 Apr
TI  - Residue dissipation and dietary exposure risk assessment of methoxyfenozide in 
      cauliflower and tea via modified QuEChERS using UPLC/MS/MS.
PG  - 2358-2363
LID - 10.1002/jsfa.10179 [doi]
AB  - BACKGROUND: Methoxyfenozide possesses efficacy against a variety of lepidopteron 
      pests, including the major pests in cauliflower and tea, so it is of great 
      importance to generalize the practical use of methoxyfenozide in the field. 
      RESULTS: 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 
      ranged from 94.5 to 108.0%, from 85.0 to 91.6% and from 77.3 to 82.0% 
      respectively, with relative standard deviations (RSDs) below 17.3% in all cases. 
      The field results showed that methoxyfenozide dissipated in cauliflower with 
      half-life (t(1/2) ) at 2.5-3.5 days and in tea with t(1/2) at 1.2 days. Combining 
      the above experimental data and statistical food intake values, the risk quotient 
      (RQ) values were significantly lower than 1. CONCLUSION: 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 the field. 
      Methoxyfenozide dissipated rapidly in cauliflower despite 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. (c) 2019 Society of 
      Chemical Industry.
CI  - (c) 2019 Society of Chemical Industry.
FAU - Sun, Hezhi
AU  - Sun H
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
FAU - Zhou, Li
AU  - Zhou L
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
FAU - Zhang, Xinzhong
AU  - Zhang X
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
FAU - Luo, Fengjian
AU  - Luo F
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
FAU - Yang, Mei
AU  - Yang M
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
FAU - Wang, Xinru
AU  - Wang X
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
FAU - Lou, Zhengyun
AU  - Lou Z
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
FAU - Chen, ZongMao
AU  - Chen Z
AUID- ORCID: 0000-0003-2242-0113
AD  - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 
      China.
LA  - eng
GR  - CAAS-ASTIP-TRICAAS/Innovative Program of the Chinese Academy of Agricultural 
      Sciences/
GR  - LY18C16005/Natural Science Foundation of Zhejiang Province/
GR  - 2016YFD0200207-2/National Key Research and Development Program of China/
PT  - Journal Article
DEP - 20200212
PL  - England
TA  - J Sci Food Agric
JT  - Journal of the science of food and agriculture
JID - 0376334
RN  - 0 (Hydrazines)
RN  - 0 (Insecticides)
RN  - 0 (Juvenile Hormones)
RN  - 0 (Pesticide Residues)
RN  - 0 (Tea)
RN  - 62A22651ZX (methoxyfenozide)
SB  - IM
MH  - Brassica/*chemistry
MH  - Camellia sinensis/*chemistry
MH  - China
MH  - Chromatography, Liquid/methods
MH  - Food Contamination/analysis
MH  - Half-Life
MH  - Humans
MH  - Hydrazines/*analysis/chemistry
MH  - Insecticides/analysis
MH  - Juvenile Hormones/*analysis/chemistry
MH  - Pesticide Residues/*analysis
MH  - Plant Shoots/chemistry
MH  - Risk Assessment
MH  - Tandem Mass Spectrometry/methods
MH  - Tea/chemistry
OTO - NOTNLM
OT  - cauliflower
OT  - dissipation
OT  - methoxyfenozide
OT  - pesticide residue
OT  - risk quotient (RQ)
OT  - tea
EDAT- 2019/12/06 06:00
MHDA- 2020/10/21 06:00
CRDT- 2019/12/06 06:00
PHST- 2019/08/15 00:00 [received]
PHST- 2019/11/06 00:00 [revised]
PHST- 2019/12/05 00:00 [accepted]
PHST- 2019/12/06 06:00 [pubmed]
PHST- 2020/10/21 06:00 [medline]
PHST- 2019/12/06 06:00 [entrez]
AID - 10.1002/jsfa.10179 [doi]
PST - ppublish
SO  - J Sci Food Agric. 2020 Apr;100(6):2358-2363. doi: 10.1002/jsfa.10179. Epub 2020 
      Feb 12.