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Determinação simultânea de agrotóxicos e micotoxinas em fitoterápicos: Validação e aplicação de métodos multirresíduo empregando LC-MS/MS
(Universidade Federal de Santa Maria, 2023-02-27)
The use of herbal medicines has increased significantly, but the presence of pesticide residues as well as the presence of mycotoxins have generated constant discussion and concern on the part of regulatory agencies. The ...
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 ...
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 ...
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 ...
Síntese, elucidação estrutural e propriedades ópticas de 1,3,2-oxazaborininos diflúor-substituídos
(Universidade Federal de Santa Maria, 2023-08-25)
The present work presents the synthesis, spectroscopic structural characterization, microbiological and photophysical properties evaluation of new series of diflúoro-organoboro compounds, BODIPYs analogous, from β-enamino-α-keto ...