Search
Now showing items 1-10 of 131
Estudo espectroeletroquímico e eletroanalítico de banhos de eletrodeposição de ligas prata-cobre e prata-zinco e caracterização morfológica, química e estrutural dos filmes
(Universidade Federal de São Carlos, 2008-08-26)
The purpose of this thesis was to establish the conditions for silver-copper and silver-zinc electrodeposition from ammonium hydroxide and thiourea solutions, respectively, and to investigate the effect of added EDTA and ...
Avaliação das condições operacionais de espectrômetro de emissão óptica com plasma acoplado indutivamente com configuração axial
(Universidade Federal de São Carlos, 2007-02-23)
The goal of this thesis was the critical
evaluation of the analytical capability of an inductively coupled plasma spectrometer
(ICP OES) with axially viewed configuration. The general view that axially systems are mainly ...
Estrutura e propriedade fotoluminescente do titanato de bário e cálcio obtido pelo método de polimerização de complexos (MPC)
(Universidade Federal de São Carlos, 2008-06-16)
The synthesis and characterization of Ba1-xCaxTiO3 (BCT) for x = 5; 10; 15; 20; 40 e 80 % mol that crystallizes in a perovisquita structure were studied in this work. The BCT material was synthesized by CPM which allows ...
Perfil cromatográfico e análise multivariada para o controle de qualidade de amostras comerciais do gênero Phyllanthus (quebra-pedra)
(Universidade Federal de São Carlos, 2008-12-05)
This work present the development and application of methods by High Performance Liquid Chromatography (HPLC) to the quality control of vegetable samples known as stone breaker , that correspond to Phyllanthus species, ...
Emprego da RMN HR-MAS e análises quimiométricas no reconhecimento e avaliação de soja (Glycine max) geneticamente modificada
(Universidade Federal de São Carlos, 2005-06-29)
The Biotechnology has made possible the development of genetically modified (GM) organisms, including soybean, main Brazilian agricultural product. These GM specimens has been produced by changing some original characteristics ...
Preparação dos eletrodos óxidos cerâmicos para aplicação em filmes finos do tipo Pb1-xCaxTiO3
(Universidade Federal de São Carlos, 2008-01-25)
In this work the compounds LaNiO3 (LNO) and La0,5Sr0,5CoO3-δ (LSCO) were synthesized for application as oxide electrodes in thin films and the compound Pb1-xCaxTiO3 (PCT10) was synthesized as a material with a ...
Complexos de cobre(II) e oxovanádio(IV) com bases de Schiff Quirais: preparação, caracterização e alguns ensaios catalíticos
(Universidade Federal de São Carlos, 2007-09-11)
Salen complexes are an important class of coordination compounds, which have been used to catalyze a wide variety of reactions. The salen complexes have emerged as efficient and practical catalysts for the asymmetric ...
Sistemas de cobre : agentes quimioterápicos potenciais para combater o crescimento de tumores malignos
(Universidade Federal de São Carlos, 2007-12-14)
In order to find inorganic compounds with biological properties as chemotherapeutic agents that could increase the possibilities in the treatment of some diseases, copper complexes with Schiff base ligands were prepared ...
Caracterização microestrutural, morfológica e óptica de filmes anódicos de ZrO2
(Universidade Federal de São Carlos, 2007-12-17)
In this work, we described some of the anodic ZrO2 properties such as microstructure, morphology and luminescence. The microstructural analysis during the breakdown process reveals that the oxide nature is similar to those ...
Estudo microgravimétrico da formação de filmes de prata eletrodepositados
(Universidade Federal de São Carlos, 2009-09-04)
In this thesis, a voltammetric coupled to microgravimetry investigation about the electrodeposition of silver over polycrystalline platinum in acid medium was performed. Microgravimetry is helpful to understand the effect ...