Now showing items 1-6 of 6
Determination of Cd(II) and Cd-metallothioneins in biological extracts using baker's yeast and inductively coupled plasma optical emission spectrometry
(Microchimica Acta, 2007-07-01) [Artigo]
The use of Saccharomyces cerevisiae as a sorbent material to separate Cd(II) and Cd-metallothionein complex (Cd-MT) has been explored. Solid-liquid phase extractions were carried out in batch mode and the main parameters ...
Pré-concentração de cádmio com Saccharomyces cerevisiae e determinação em águas fluviais usando espectrometria de emissão óptica com plasma indutivamente acoplado
(Química Nova, 2007-04-01) [Artigo]
A preconcentration method based on the use of Saccharomyces cerevisiae as sorbent material is proposed for the determination of Cd(II) in river water. The solid phase extraction was performed in batch mode and the determination ...
Speciation analysis of Sn(II) and Sn(IV) using baker's yeast and inductively coupled plasma optical emission spectrometry
(Microchimica Acta, 2007-03-01) [Artigo]
The use of Saccharomyces cerevisiae as a substrate to selectively retain Sn(II) and Sn(IV) has been investigated. Several factors affecting the retention of the analytes by yeast, such as pH, amount of biomass, temperature ...
Use of diffusive gradients in thin films and tangential flow ultrafiltration for fractionation of Al(III) and Cu(II) in organic-rich river waters
(Analytica Chimica Acta, 2007-08-15) [Artigo]
Diffusive gradients in thin films (DGT) and tangential-flow ultrafiltration (TF-UF) were combined for fractionation of Al and Cu in river water containing high content of dissolved organic carbon. A procedure based on ...
Use of Bioscreen C for growth of Mucor hiemalis in different carbon and nitrogen sources
(Brazilian Journal of Microbiology, 2007-03-01) [Artigo]
O sistema automatizado Bioscreen C foi utilizado para o crescimento de quatro linhagens de Mucor hiemalis, isoladas do solo da Estação Ecológica de Juréia-Itatins (EEJI), estado de São Paulo, em meios líquidos com uma única ...
Fatty acid production by four strains of Mucor hiemalis grown in plant oil and soluble carbohydrates
(African Journal of Biotechnology, 2007-08-06) [Artigo]
Four Mucor hiemalis strains (M1, M2, M3 and M4), isolated from soil at a depth of 0 - 15 cm in the Juréia-Itatins Ecology Station (JIES), in the state of São Paulo, Brazil and were evaluated for the production of γ-linolenic ...