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Determinação da bioacessibilidade de metais em suplementos alimentares por espectrometria de emissão óptica após protocolos in vitro
(Universidade Federal de Santa Maria, 2023-03-06)
Dietary supplements are defined as products to supplement the diet and provide essential nutrients for
the humans. They can contain vitamins, minerals, botanical products, amino acids, or any combination
of these. The ...
Comportamento eletrostático em interface líquido-sólido: estratégias para detecção de fluxo de líquidos
(Universidade Federal de Santa Maria, 2024-02-19)
Although known since ancient times, triboelectricity is a phenomenon whose fundamental
causes are not yet fully understood, especially in liquid-solid interfaces. Significant
efforts have initiated studies on electrostatic ...
Desenvolvimento de esponjas de luffa cylindrica com quitosana para adsorção do corante vermelho 40
(Universidade Federal de Santa Maria, 2023-12-18)
The large consumption of water and the generation of colored effluents in industrial processes raise concerns regarding the pollution of water bodies. Containing this environmental pollution is one of the great challenges ...
Tuning, mechanistic routes and performance amplification of microwave-responsive iron/copper carbonaceous heterostructures in the degradation of pharmaceutical substances
(Universidade Federal de Santa Maria, 2024-02-22)
A presença crescente de fármacos como poluentes em ecossistemas globais é atribuída ao
aumento do uso dessas substâncias, com as estações de tratamento de água e esgoto
incapazes de removê-las. O interesse de pesquisa ...
Emprego da microextração líquido-líquido dispersiva para extração de ferro em cerveja e determinação por espectrometria de absorção atômica com chama
(Universidade Federal de Santa Maria, 2023-03-09)
In this work, a sample preparation method based on dispersive liquid-liquid microextraction (DLLME) for the extraction and preconcentration of Fe in beer and subsequent determination by flame atomic absorption spectrometry ...
Comportamento magnético e efeito magnetocalórico de nanoestruturas frustradas de Ising
(Universidade Federal de Santa Maria, 2024-02-20)
In this work, we investigate the magnetic and magnetocaloric properties of two frustrated
Ising clusters in the presence of a longitudinal magnetic field: the centered tetrakis hexahedron
structure and the hexagonal ...
Síntese de 3 e 4-(organosselenil)-quinolinas via reações de ciclização intramolecular
(Universidade Federal de Santa Maria, 2024-03-27)
Quinolines are important heterocycles, where many molecules that have biological and pharmacological activities constitute this quinoline nucleus, driving more and more studies on the synthesis of these compounds. In the ...