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Fenitrothion and esfenvalerate stability during corn and wheat sample processing Scientia Agricola
Vásquez-Castro,Javier Alberto; Baptista,Gilberto Casadei de; Trevizan,Luiz Roberto Pimentel; Gadanha Junior,Casimiro Dias.
The presence of insecticide residues in cereals represents a risk for the consumer, because these substances are used in large scale to protect stored grains from the attack of pests. The effects of three processing methods for corn and wheat samples on the stability of stored-grain protective insecticides were here evaluated. Fenitrothion and esfenvalerate were applied so as to produce theoretical concentrations of 10 and 0.5 mg kg-1, respectively. Two hours after treatment, the grains were processed and deposition was analyzed by gas chromatography. Grain species did not influence insecticide stability. This stability was only dependent upon the processing method and insecticide type. Grains processed together with dry ice provided the greatest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stored grain; Insecticide degradation; Dry ice; Gas chromatography.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000200008
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