Data/hora: 19/06/2024 16:54:22

Biblioteca(s): 	Embrapa Meio Ambiente.	
Data corrente: 	19/07/1999	
Data da última atualização: 	19/12/2019	
Autoria: 	QUEIROZ, R. H. C.; LANCHOTE, V. L.; BONATO, P. S.; TOZZATO, E.; CARVALHO, D. de; GOMES, M. A.; CERDEIRA, A. L.	
Afiliação: 	EMBRAPA-CNPMA; ANTONIO LUIZ CERDEIRA, CNPMA.	
Título: 	Determination of ametryn herbicide by bioassay and gas chromatography-mass spectrometry in analysis of residues in drinking water.	
Ano de publicação: 	1999	
Fonte/Imprenta: 	Bolletino Chimico Farmaceutico, v.138, n.5, p.251-254, 1999.	
Idioma: 	Inglês	
Conteúdo: 	A simple, rapid, and quantitative bioassay method was compared to a gas chromotography/mass spectrometry (GC/MS) procedure for the analysis of ametryn in surface and groundwater. This method was based on the activity of ametryn in inhibiting the growth of the primary root and shoot of germinating lettuce, Lactuca sativa L. seed. The procedure was sensitive to 0.01 ug/l and was applicable from this concentration up to 0.6 ug/l. Initial surface sterilization of the seed selection of pregerminated seed of certain root lengths, and special equipment are not necessary. So, we concluded that the sensitivity of the bioassay method is compatible with the chromatographic method (GC-MS). However, the study of the correlation between methods suggests that the bioassay should be used only as a screening technique for the evaluation of ametryn residues in water.	
Palavras-Chave: 	Beneficial effects; Contamination; Method; Movement; Persistance; Persistent; Water samples; Watershed.	
Thesaurus Nal: 	environment; herbicides; leaching; monitoring; toxicity.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/207429/1/Queiroz-Determination.pdf	
Registro original: 	Embrapa Meio Ambiente (CNPMA)	
Exemplares: 	CNPMA - (3668-1) - UPC - AP - DD -  -  - 0 - DIS