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Síntese, caracterização estrutural e estudo fotofísico de 1,1- diflúor-3-aril-6-aril(heteroaril)-1H-[1,3,4]oxadiazolo[3,2-c] [1,3,5,2]oxadiazaborininos
(Universidade Federal de Santa Maria, 2022-03-21)
This work presents the results obtained for the synthesis, structural characterization
and evaluation of the photophysical properties, in solution and in the solid state, of a series of
nine specimens of 1,1-difluoro-3 ...
Evidências da eletrização de polímeros dielétricos durante a impressão 3D
(Universidade Federal de Santa Maria, 2024-01-23)
During the fused deposition (FDM) 3D printing process, several effects are observed on the deposited polymers. These effects include phase change, extrusion, voltage gradient, friction, contact between different ...
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 ...
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 ...