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Avaliação de procedimentos de extração e determinação de boro em amostras de solo e plantas
(Universidade Federal de São Carlos, 2006-02-20)
Boron is
present in soils as an essential nutrient for plants growing. Soils and plants sample
preparation procedures were evaluated aiming to compare the extractors efficiency.
Sample preparation methods, such as dry ...
Pigmentos nanométricos de alumina dopada com ferro, níquel e manganês
(Universidade Federal de São Carlos, 2006-11-08)
In the recent years, the necessity of ceramic pigments production with new shades and variable distributions of particle size has increased considerably. The color and size of pigment particles are responsible for important ...
Novo enfoque no estudo da transição de fase composicional da solução sólida ferroelétrica (Pb,Ca)TiO3
(Universidade Federal de São Carlos, 2006-11-13)
Ferroelectric materials have a vast application in modern industry as data storage devices. Some of this materials, as the ferroelectric oxides class ABO3, have phase transitions with the alteration of of the lattice ...
Estudo fitoquímico de Rauia sp e Conchocarpus macrophyllus (Rutaceae) e avaliação da atividade antiparasitária de extratos e substãncias isoladas.
(Universidade Federal de São Carlos, 2006-05-17)
This work involved the
study of plant extracts of the Rutaceae species. Among 16 extracts tested in assays
carried out with T. cruzi gGAPDH and L. tarentolae APRT enzymes and
trypomastigote forms of T. cruzi, four showed ...
Preparação e caracterização de eletrodos de polímeros condutores sobre carbono vítreo reticulado (RVC) para a aplicação em baterias secundárias.
(Universidade Federal de São Carlos, 2006-03-22)
The general purpose of this work is the optimization of
the conducting polymer deposition on RVC and the use of these electrodes in an allpolymeric
ion-lithium battery, which means an anode and a cathode made of ...
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 ...
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 ...
Aplicação de técnicas espectrométricas, cromatográficas e quimiométricas na avaliação da autenticidade de plantas utilizadas como fitoterápicos.
(Universidade Federal de São Carlos, 2006-08-01)
The use of herbal medicines in the Brazilian market has increased in the last
few decades. Therefore, the quality control for herbal products, as well as traditional
medicines, is extremely important and for both: the ...