Data/hora: 22/06/2024 21:01:36

Biblioteca(s): 	Embrapa Meio Norte / UEP-Parnaíba.	
Data corrente: 	12/01/1994	
Data da última atualização: 	12/02/2009	
Autoria: 	BOWMAN, M. C.; BEROZA, M.; HARDING, J. A.	
Título: 	Determination of phorate and five of its metabolites in corn.	
Ano de publicação: 	1969	
Fonte/Imprenta: 	Journal of Agricultural and Food Chemistry, v. 17, n. 1, p. 138-142, 1969.	
Idioma: 	Inglês	
Conteúdo: 	Residues of the insecticide phorate, {0,0-diethyl S-[(ethylthio)] phosphorodithioate}, and five of its metabolites were determined in corn treated with the insecticide in granular form. The plant was extracted in a Soxhlet apparatus for 8 hours with 10% methanol in chloroform, and the extract was separated into three fractions by liquid chromatography on silica gel. Aliquots of the concentrated fractions were injected into a gas chromatograph equipped with a flame photometric detector sensitive to phosphorus. No interference from the crop extracts was encountered. Recoveries of the compounds from  fortified samples were 96% or more, except for the oxygen analog of phorate; its recovery was only 62%. Sensitivity was 0.004 p.p.m. or better. Residues in various parts of corn plants treated with 1 pound of phorate per acre were determined at seven intervals after application. The  toxicities of the six compounds to the European corn borer, Ostrinia nubialis (Hübner), were determined. Partition and chromatographic data are also given.	
Palavras-Chave: 	Maize; Pest; Pesticide.	
Thesagro: 	Inseticida; Milho; Praga.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)	
Exemplares: 	CPAMN-UEPP - (3171-1) - ADD - SP - -- - SP 4604/1992 -  - 1992.04604 - DIS