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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Determination of ametryn herbicide by bioassay and gas chromatography-mass spectrometry in analysis of residues in drinking water.
Autores:  QUEIROZ, R. H. C.
LANCHOTE, V. L.
BONATO, P. S.
TOZZATO, E.
CARVALHO, D. de
GOMES, M. A.
CERDEIRA, A. L.
Data:  1999-07-19
Ano:  1999
Palavras-chave:  Persistance
Beneficial effects
Contamination
Water samples
Method
Persistent
Movement
Watershed
Environment
Herbicides
Leaching
Monitoring
Toxicity
Resumo:  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.
Tipo:  Artigo de periódico
Idioma:  Inglês
Identificador:  Bolletino Chimico Farmaceutico, v.138, n.5, p.251-254, 1999.

http://www.alice.cnptia.embrapa.br/alice/handle/doc/13134
Direitos:  openAccess
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