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Determination of Multi-residue Insecticides of Organochlorine, Organophosphorus, and Pyrethroids in Wheat.
MedLine Citation:
PMID:  21656043     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The undesirable effects of green revolution include residues of extensively used pesticides in various food commodities. Several studies showed that pesticides could cause health problems. Keeping in view the problem of pesticide residues in various food commodities, the present study was conducted on domestic stored wheat as well as on imported wheat for the qualitative and quantitative analysis of organochlorine, organophosphorus and pyrethroids. Among the imported wheat, 22.5% samples were found contaminated by organophosphorus (chlorpyrifos 0.073-0.230 μg/g, malathion 0.0419-0.1003 μg/g) and pyrethroids (cypermethrin 0.1404-0.2005 μg/g, permethrin 0.0140-0.0480 μg/g) while in domestic wheat 6.7% samples were found contaminated by pyrethroids (deltamethrin 0.0650-1.2903 μg/g) only. Method used for extraction and analysis of insecticides was validated both by recovery studies and inter laboratory comparison proficiency test. The method recovery results show that the average recovery of the fortified wheat samples was in the range of 73.77%-100.17% with the RSD in the range of 2.21-9.27 whereas, the Z-scores of the inter laboratory comparison proficiency test's result was less than 2.
Authors:
Riazuddin; Muhammad Farhanullah Khan; Sajid Iqbal; Muhammad Abbas
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-8
Journal Detail:
Title:  Bulletin of environmental contamination and toxicology     Volume:  -     ISSN:  1432-0800     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-9     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:  -    
Affiliation:
Grain Quality Testing Laboratory, Southern zone Agricultural Research Centre, Pakistan Agricultural Research Council, Karachi University Campus, Karachi, 75270, Pakistan, riaz_1969@yahoo.com.
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