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Multiresidue method for determination of pesticide residues in processed foods by GC/MS
MedLine Citation:
PMID:  19897945     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
A rapid and simple multiresidue method has been established for determination of pesticide residues in processed foods by GC/MS. The pesticides were extracted with ethyl acetate in the presence of anhydrous MgSO(4) in a disposable tube, using a homogenizer. The extract was concentrated and reconstituted in hexane, followed by acetonitrile-hexane partition to remove lipids. The acetonitrile layer was cleaned up with a double-layered SPE cartridge column (graphite carbon black/PSA silica gel). After removal of the solvent, the residue was dissolved in acetone. The test solution was subjected to GC/MS in the EI mode. Recovery tests of 222 pesticides from five kinds of processed foods (dumpling, curry, French fries, fried chicken, fried fish) were performed at two different fortification levels of 0.02 and 0.1 microg/g, and 100 pesticides showed acceptable recovery (70-120%) with low relative standard deviation (<or=20%) at both concentrations. A survey of pesticide residues in 75 commercial processed foods was carried out. Chlorpropham was detected at 0.04 ppm in a sample of French fries.
Authors:
Yoko Kitagawa; Masahiro Okihashi; Satoshi Takatori; You Okamoto; Naoki Fukui; Hiroshi Murata; Tatsuo Sumimoto; Hirotaka Obana
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Publication Detail:
Type:  English Abstract; Journal Article    
Journal Detail:
Title:  Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan     Volume:  50     ISSN:  1882-1006     ISO Abbreviation:  Shokuhin Eiseigaku Zasshi     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-11-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0142214     Medline TA:  Shokuhin Eiseigaku Zasshi     Country:  Japan    
Other Details:
Languages:  jpn     Pagination:  198-207     Citation Subset:  IM    
Affiliation:
Osaka Prefectural Institute of Public Health, Higashinari-ku, Osaka, Japan.
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