Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 4
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Caractérisation physico-chimique de la partie sud ouest de la baie de Tunis sous l’influence des apports de l’oued Meliane OceanDocs
Ben Lamine, Y.; Daly Yahia-Kefi, O.; Daly Yahia Mohamed, N..
La partie sud ouest de la baie de Tunis subit les apports de l’oued Méliane qui est le deuxième oued pérenne de la Tunisie. Afin de cerner le profil physicochimique de cette partie de la baie, des prélèvements mensuels ont été effectués au niveau de 22 stations dont 19 dans la partie Sud Ouest de la baie de Tunis et 3 en aval de l’oued Méliane pendant les deux saisons, estivale et automnale de l’année 2004. Les valeurs de la température étaient conformes aux normes saisonnières et la salinité était faible à l'embouchure de l'oued Méliane suite aux apports d'eau douce. Les teneurs en sels nutritifs (nitrates, phosphates et ammonium) étaient très élevées et ont classé la qualité des eaux de la partie sud ouest de la baie de Tunis dans la catégorie "médiocre"...
Tipo: Journal Contribution Palavras-chave: River inflow; Salinity; Water samples; Physicochemical properties.
Ano: 2011 URL: http://hdl.handle.net/1834/4743
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: Capítulo em livro científico (ALICE) 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
Imagem não selecionada

Imprime registro no formato completo
Nitrogen and phosphorus species of Lake Burullus Water (Egypt) OceanDocs
Okbah, M.A..
Water samples collected from Lake Burullus were analyzed to investigate temporal and spatial variations of phosphorus and nitrogen species during the period from January to October 2003. The concentrations of dissolved inorganic nitrogen (DIN), dissolved organic nitrogen (DON), particulate nitrogen (PN) and total nitrogen (TN) were in the ranges of 4.10-107.51mole l-1 ; 7.43-170.10mole l-1; 9.33-209.4mole l-1 and 51.40-259.0 mole l-1 respectively. DIN, DON and PN species represent 19%, 34% and 47% of the total nitrogen content, respectively. Significant variations for the concentrations of the phosphorus forms have been found in this study. Concentrations of reactive phosphate (PO4), dissolved organic phosphorus (DOP), particulate phosphorus (PP) and...
Tipo: Journal Contribution Palavras-chave: Water samples; Water content; Nitrogen; Nutrients; Phosphorus; Http://aims.fao.org/aos/agrovoc/c_5192; Http://aims.fao.org/aos/agrovoc/c_5274; Http://aims.fao.org/aos/agrovoc/c_5804.
Ano: 2005 URL: http://hdl.handle.net/1834/1263
Imagem não selecionada

Imprime registro no formato completo
Síntesis de datos físico-químicos del agua de mar obtenidos durante las campañas del Proyecto PID Nº 371 en el Golfo San Matías y Bahía de San Antonio, durante el periodo 2004 - 2007 OceanDocs
Ocampo Reinaldo, M.; Storero, L.P..
Se presentan una recopilación de datos de parámetros físico-químicos del agua de mar, recolectados en diferentes sitios del Golfo San Matías, la Bahía de San Antonio y otras zonas intermareales y submareales aledañas. La información se recolectó entre 2004 y 2007 en actividades de campañas de investigación y salidas de campo programadas del Proyecto PID 2003 Nº 371 y de otros proyectos relacionados
Tipo: Report Palavras-chave: Sea water; Water analysis; Water samples; Chemical oceanography; Physical oceanography; Sea water; Water analysis.
Ano: 2007 URL: http://hdl.handle.net/1834/4384
Registros recuperados: 4
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