Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAno

Imprime registros no formato resumido
Registros recuperados: 2
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Method for bioassaying ametryne in water. Repositório Alice
TOZZATO, E.; BONATO, P. S.; CERDEIRA, A. L.; GOMES, M. A. F.; CARVALHO, D.; LANCHOTE, V. L.; QUEIROZ, R. H. C..
The beneficial effects of herbicides are sometimes mitigated by their persistence in the environment. Water may be contaminated with herbicides from aerial spraying, runoff from land treated with herbicides, and direct introduction of herbicides into water to control aquatic weeds. The availability of a monitoring system for herbicides, particularly in flowing wates such as irrigation canals is essential so that damage to the environment and crop plants through the use of contaminated water can ve avoided. Therefore, a simple and rapid quantitative method is presented for the screening and determination of small amounts of ametryne in aqueous solution. This method is based on the activity of the ametryne in inhibition the growth of the primary root and...
Tipo: Artigo de periódico Palavras-chave: Ametryne; Método de bioensaio.
Ano: 1997 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/12761
Imagem não selecionada

Imprime registro no formato completo
Determination of ametryn herbicide by bioassay and gas chromatography-mass spectrometry in analysis of residues in drinking water. Repositório Alice
QUEIROZ, R. H. C.; LANCHOTE, V. L.; BONATO, P. S.; TOZZATO, E.; CARVALHO, D. de; GOMES, M. A.; CERDEIRA, A. L..
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...
Tipo: Artigo de periódico Palavras-chave: Persistance; Beneficial effects; Contamination; Water samples; Method; Persistent; Movement; Watershed; Environment; Herbicides; Leaching; Monitoring; Toxicity.
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/13134
Registros recuperados: 2
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional