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Mostrando ítems 11-20 de 118
Determinação de manganêsem águas no entorno de minerações de urânio
(Universidade Estadual Paulista (Unesp), 2012)
The studies of this work aimed to determine the labile fractions of manganese (Mn) in natural and drainage water samples collected around the Osamu Utsumi uranium mine, located in the municipality of Caldas, south-central ...
Dependence of divalent metal ions on phosphotransferase activity of osseous plate alkaline phosphatase
(Elsevier B.V., 1997-04-01)
Kinetic evidence for the role of divalent metal ions in the phosphotransferase activity of polidocanol-solubilized alkaline phosphatase from osseous plate is reported. Ethylenediamine tetreacetate, 1,10-phenanthrolin, and ...
Comparación de métodos de lisis y extracción de ADN de trofozoiteos de Giardia lambliaComparison of lysis methods and DNA extraction of Giardia lamblia trophozoites
(Sociedad Chilena de Parasitología, 2006-12)
The efficiency of lysis procedures and DNA purification treatments of Giardia lamblia trophozoites were evaluated regarding the breaking-up efficiency, quantity and pureness of DNA, processing time and costs. Five lysis ...
Comparación de 3 métodos de extracción de DNA de tejidos embebidos en parafina
El tejido Embebido en Parafina (TEP) es una va-liosa fuente de ADN para investigación molecular. El objetivo de este estudio fue evaluar tres protocolos para el aislamiento de ADN fijado en formol y parafinado, evaluando ...
Determination of in situ speciation of manganese in treated acid mine drainage water by using multiple diffusive gradients in thin films devices
(2013-10-17)
Acid mine drainage (AMD) is a serious environmental problem that creates acidic solution with high Mn concentrations. The speciation of residual Mn from AMD after an active treatment involving the addition of a neutralizing ...
Determination of in situ speciation of manganese in treated acid mine drainage water by using multiple diffusive gradients in thin films devices
(2013-10-17)
Acid mine drainage (AMD) is a serious environmental problem that creates acidic solution with high Mn concentrations. The speciation of residual Mn from AMD after an active treatment involving the addition of a neutralizing ...
In situ redox speciation analysis of chromium in water by diffusive gradients in thin films using a DE81 anion exchange membrane
(2016-07-01)
A method for the in situ redox speciation analysis of chromium in water by the diffusive gradients in thin films (DGT) technique using a DE81 anion exchange membrane was successfully developed. For the selective uptake of ...
In situ speciation of uranium in treated acid mine drainage using the diffusion gradients in thin films technique (DGT)
(2017-02-01)
The exchange membranes P81 and DE81 and Chelex-100 resin were used to perform in situ speciation of uranium in treated acid mine drainage at the Osamu Utsumi mining site, Poços de Caldas city, Southeast Brazil. To investigate ...
Determination of labile barium in petroleum-produced formation water using paper-based DGT samplers
(Elsevier B.V., 2012-10-15)
A polyacrylamide hydrogel containing the Chelex-100 resin has traditionally been used as the binding agent for the diffusion gradients in thin films (DGT) technique. The Chelex-100 resin, although important for the ...