Document Detail

Dissipation Rates and Final Residues of Kresoxim-Methyl in Strawberry and Soil.
MedLine Citation:
PMID:  23277369     Owner:  NLM     Status:  Publisher    
In order to study the dissipation rates and final residues of kresoxim-methyl in strawberry and soil, two independent filed trials were performed in Beijing China. The application rates are set at 195 g of active gradient per hectare. A simple analytical method has been developed for the determination of kresoxim-methyl in strawberry and soil. Kresoxim-methyl residues were extracted with acetonitrile from strawberry and soil samples which is determined by gas chromatography coupled with mass spectrometry detection (GC-MSD). The recoveries of kresoxim-methyl in strawberry and soil were observed from 78.9 % to 104.5 % at fortification levels of 0.01-0.5 mg/kg with relative standard deviations of 4.3 %-7.3 %. The reported limits of detection were 0.05 and 0.01 mg/kg for strawberry and soil, respectively. The results showed that kresoxim-methyl dissipation in strawberry could be described as first-order equation with the half-life time of 6.24 and 6.91 days. 14 days later, the dissipation rate is 84.9 % and 83.3 %, respectively. The final residues of kresoxim-methly in the strawberry were in the range of 2.7-4.8 mg/kg at pre-harvest intervals of 1, 3, 5, 7 days which is below the Japan maximum residue limits (MRLs) standards (5 mg/kg in strawberry).
Chunhong Jia; Xiaodan Zhu; Ercheng Zhao; Min He; Pingzhong Yu; Li Chen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-1
Journal Detail:
Title:  Bulletin of environmental contamination and toxicology     Volume:  -     ISSN:  1432-0800     ISO Abbreviation:  Bull Environ Contam Toxicol     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0046021     Medline TA:  Bull Environ Contam Toxicol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Institute of Plant and Environment Protection, Beijing Academy of Agricultural and Forestry Sciences, Beijing, 100097, China.
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