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Avaliação e correção de interferências na determinação de As e Se por técnicas com plasma acoplado indutivamente
(Universidade Federal de São Carlos, 2012-02-28)
The aim of the thesis was to evaluate different strategies for correcting spectral and non-spectral interferences on As and Se determination by inductively coupled plasma optical emission spectrometry (ICP OES) and mass ...
Desenvolvimento de biossensores utilizando nanotubos de carbono e nanopartículas de ouro
(Universidade Federal de São Carlos, 2012-06-22)
First, a glassy carbon electrode modified with functionalized carbon nanotubes (CNTs) and glucose oxidase was proposed. Cyclic voltammetry of GOx immobilized onto the surface of CNTs showed a pair of well-defined redox ...
Aplicação de imagens digitais e técnicas espectroanalíticas combinadas com quimiometria para detecção e quantificação de adulteração em leite bovino
(Universidade Federal de São Carlos, 2013-02-22)
Milk provides essential nutrients (carbohydrate, fat, protein, minerals and vitamins) of great nutritional relevance for humans, particularly during childhood. Nowadays, the occurrence of milk adulteration is a major issue ...
Synthesis of new cocrystal solid form of fluconazole-fumaric acid
(Universidade Federal de São Carlos, 2015-09-29)
Pharmaceutical cocrystals are multicomponent crystalline solids comprised of
an active pharmaceutical ingredient (API) and one or more co-formers
interacting through hydrogen bonding or other weak interactions like the ...
Construção e aplicação analítica de eletrodos de pasta de carbono modificada com ftalocianina de cobalto para determinação de analítos de interesse.
(Universidade Federal de São Carlos, 2004-04-16)
In this thesis work the development and applications of cobalt
phthalocyanine carbon paste electrode (CoPc/CPE) for voltammetric determination
(cyclic voltammetry and differential pulse voltammetry) of hydrazine in boiler ...
Desenvolvimento de modelos de calibração multivariada em espectroscopia de infravermelho próximo para ácidos graxos em amostras de carne bovina
(Universidade Federal de São Carlos, 2016-03-21)
The Brazilian cattle have shown promise prominence in the international market
compared to other commodities. It already knows the important role of fatty acids in the complimentarily of human nutrition. On the other hand, ...
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 ...
Desenvolvimento de procedimentos eletroanalíticos para a determinação de antioxidantes e corantes em produtos alimentícios empregando um eletrodo de diamante dopado com boro
(Universidade Federal de São Carlos, 2011-04-29)
The following topics were investigated in this thesis: a) the electrochemical response of a boron-doped diamond electrode, after different electrochemical pretreatments, for two antioxidants (butylated hydroxyanisole BHA ...
Desenvolvimento de eletrodos modificados com Poli-1-aminonaftaleno e Poli-1,5-diaminonaftaleno e aplicação na determinação de analitos de interesse farmacêutico
(Universidade Federal de São Carlos, 2010-11-18)
The aim of this work was to study the electrochemical response of the electrode modified with poly-1-aminonaphthalene (1-PAN) and poly-1 ,5- diaminonaphthalene (1,5-PDAN) for dopamine (DA), noradrenaline (NA) adrenaline ...
Desenvolvimento de procedimento automático para determinação fotométrica de N-ureídos totais em leguminosas empregando multicomutação em fluxo
(Universidade Federal de São Carlos, 2007-07-28)
This work aimend the development of an automated procedure for photometric determination of total ureide in soybean tissues using multicommutation in flow analysis. The photometric detection was based on the formation of ...