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Desenvolvimento de método para análise de especiação de arsênio em derivados líquidos de arroz
(Universidade Federal de Santa Maria, 2018-12-14)
From the discovery of intolerances related to bovine milk and wheat, there is a growing demand for derived products from rice, such as milk, beer, sake, vinegar, among others. However, these products are potential holders ...
Síntese regiosseletiva de novas (4,5-diidropirazol-1-il)(-pirimidin-4-il)metanonas com potencial farmacológico
(Universidade Federal de Santa Maria, 2016-10-20)
This study shows the synthesis of five new 6-substituted 2-methylthio-4-pyrimidine carbohydrazides, aryl groups having such substituents (Ph, 4-FC6H4, 4-BrC6H4, 4-MeC6H4, 4-MeOC6H4) from the nucleophilic substitution of ...
Antibióticos macrolídeos: determinação e identificação de metabólitos e subprodutos de degradação em efluente hospitalar
(Universidade Federal de Santa Maria, 2013-08-09)
Macrolide antibiotics are an important group of prescription drugs; as a consequence of the large and continuous use, they are commonly found in the environment.
In the present study, it was developed and optimized a ...
Aplicação da copolimerização radicalar para a síntese de nanocatalisadores por rota simples e de baixo impacto ambiental
(Universidade Federal de Santa Maria, 2018-08-16)
This work focuses on the synthesis of advanced polymeric nanogels with the
purpose of using them as high performance stabilizing agents for the synthesis of
hybrid nanoparticles containing gold or palladium and in the ...
Determinação de elementos terras raras em amostras ambientais por cromatografia líquida de alta eficiência com pareamento iônico
(Universidade Federal de Santa Maria, 2018-08-28)
Rare earth elements (ETRs) comprise a group of 17 chemical elements formed by the series of lanthanides, from lanthanum (La) to lutetium (Lu), added to scandium (Sc) and yttrium (Y) elements. Currently they are widely used ...
Estudo comparativo entre polietileno de alta densidade, espuma de poliuretano e Amberlite XAD-2 na adsorção de hidrocarbonetos policíclicos aromáticos
(Universidade Federal de Santa Maria, 2018-08-10)
Polyciclic aromatic hydrocarbons (PAH) are compounds that present two or more condensed aromatic rings. These substances can be found in the environment, and its contamination could lead to health risks. For environmental ...
Síntese, nanoencapsulamento e atividade biológica de compostos triazenos
(Universidade Federal de Santa Maria, 2012-02-01)
Compounds featuring triazenidic units constitute a versatile class of molecules for the preparation of new inorganic complexes with broad applications that include cancer therapy such as leukemia treatment. Gold-triazenide ...
Funcionalização da palha de milho com 3-aminopropiltrietoxisilano para adsorção do corante vermelho reativo 141
(Universidade Federal de Santa Maria, 2019-08-05)
An alternative and low cost adsorbent (CS–APTES) was developed by the functionalization corn stover (CS) with 3–aminopropyltrietoxysilane (APTES) using a simple method of reaction under reflux. The techniques of Fourier ...
Novos compostos de alta dimensionalidade envolvendo um ligante fexível bisfosfinato
(Universidade Federal de Santa Maria, 2010-07-19)
Compounds involving phosphinates ligands possess the ability to form strong
metal-oxygen bonds in the solid state by virtue of the very electronegative O atoms
bound to an electropositive P atom. This fact was the ...
Determinação de resíduos de agrotóxicos em tomate para fins de acreditação
(Universidade Federal de Santa Maria, 2014-01-17)
The optimization and validation of an analytical method for 51 pesticides determination in tomato, using UPLC-MS/MS, was developed in order to fulfill the requirement 5.4.5 (Method Validation) of the NBR ISO/IEC 17025:2005 ...