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Now showing items 41-50 of 249
Transporte de vapor de água e sorção de CO2 em filmes de polisulfona: efeito das variáveis de processamento e envelhecimento físico.
(Universidade Federal de São Carlos, 2004-08-31)
Water vapor transport properties and CO2 sorption were studied for bisphenol A Polysulfone films, PSF, prepared with different thickness via solvent casting and a compression molding. From the measurements of water vapor ...
Avaliação de procedimentos para preparo de amostras agronômicas visando determinação multielementar por espectrometria de emissão ótica com plasma induzido.
(Universidade Federal de São Carlos, 2004-05-21)
Sample preparation was always considered a limiting factor for sample
throughput in the analytical sequence due to its high time consumption and great
probability for error insertion in the results. Therefore, purposes to ...
Preparação e caracterização de compósitos de polianilina (DMcT Cu(II)) / fibra de carbono como catodos em baterias secundárias.
(Universidade Federal de São Carlos, 2004-12-17)
The composites were obtained by cyclic voltammetry and the
incorporation of Cu(II) to the Pani(DMcT) / C fiber composite was carried out by two
methods: A) Cu(II) added to the polymerization electrolyte along with the ...
Estudo de procedimentos analíticos para determinação de Cr(III) e Cr(VI) em amostras sólidas.
(Universidade Federal de São Carlos, 2006-03-02)
The legislation is evolving towards the establishment of restrictions to the concentration of Cr(VI), the most toxic redox form of chromium, in solid materials. This aspect has stimulated the development of sample preparation ...
Fitoquímica, quimiossistemática e busca de novos fármacos antichagásicos e antileishmanioses: estudo de Raputia praetermissa (Rutaceae).
(Universidade Federal de São Carlos, 2005-08-31)
Raputia praetermissa (Engler) Emmerich is a tree
found only in the Forest Reserve Adolpho Ducke, Amazonas, Brazil. The genus
Raputia was originally described by Engler and many species were included in this
genus, but in ...
Desenvolvimento e aplicação de procedimentos envolvendo reações quimiluminescentes em fluxo para a determinação de analitos de interesse alimentício, farmacêutico e bioquímico.
(Universidade Federal de São Carlos, 2005-09-23)
In this work, analytical flow procedures were developed using multicommutation
concept and chemiluminescent detection for the determination of hydrogen
peroxide, glucose and cholesterol in food, biochemistry and ...
Produção e caracterização de eletrodos de Ti-Pt/PbO2 dopados e seu uso no tratamento eletroquímico de efluentes simulados
(Universidade Federal de São Carlos, 2006-05-03)
Ti-Pt/PbO2 electrodes were obtained by electrodeposition of
PbO2 films at 65 °C and with different dopant(s) (Fe, Co, F, Fe and F, Co and F)
contents in the oxide matrix, which were controlled under pre-established ...
Estudo fitoquímico de Helietta puberula (Rutaceae), Simarouba versicolor (Simaroubaceae) e busca de um processo de microencapsulação de compostos ativos visando o controle de formigas cortadeiras.
(Universidade Federal de São Carlos, 2006-06-02)
This work involved the
bioassay-guided study of Helietta puberula (Rutaceae) e Simarouba versicolor
(Simaroubaceae). The biossays were carried out with leaf-cutting ants Atta
sexdens rubropilosa, antifungal activity against ...
Desenvolvimento de procedimentos de análise por injeção em fluxo para a determinação de furosemida, paracetamol e acetilcisteína em formulações farmacêuticas.
(Universidade Federal de São Carlos, 2006-08-25)
In this thesis are presented the development of
flow injection analysis procedures with spectrophotometric detection for determination of
furosemide, paracetamol and acetylcysteine in samples of pharmaceutical formulations.
A ...
Avaliação de potencialidades e aplicações de espectrômetros com plasma acoplado indutivamente em análises químicas.
(Universidade Federal de São Carlos, 2007-02-22)
This work is divided in two main parts. In the first one, the operating
conditions of a radially inductively coupled plasma optical emission spectrometry (ICP
OES) was evaluated in soil and vegetable materials analysis. A ...