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Itens para a visualização no momento 11-20 of 23
Estabilidade térmica, oxidativa e suporte em sílica mesoporosa de líquidos iônicos derivados do ibuprofeno
(Universidade Federal de Santa Maria, 2018-08-14)
In this work, the thermal and oxidative stability of a series of ionic liquids (ILs) derived from active pharmaceutical ingredients (IL-APIs) with ibuprofen anion and cations: ranitidine [RAN][IBU], lidocaine [LID][IBU], ...
Análise fitoquímica das espécies Discaria americana e Scutia buxifolia
(Universidade Federal de Santa Maria, 2018-02-26)
This work had as a proposal to carry out a phytochemical study of the crude
extract of the bark of the roots of the species American Discaria Gilles and Hooker and
of the bark of the stem of the species Scutia buxifolia. ...
Determinação de elementos terras raras por espectrometria de absorção atômica de alta resolução com fonte contínua por chama
(Universidade Federal de Santa Maria, 2018-08-29)
In the present work, two methods of determination of rare earth elements by high resolution continuum source flame AAS was developed, being a sequential and a simultaneous method. The sequential method allowed the determination ...
4-(trifluormetil)haloquinolinas: síntese, reações de acoplamento cruzado C-C e C-N, propriedades fotoluminescentes e antimicrobianas
(Universidade Federal de Santa Maria, 2018-03-23)
In this thesis, methodologies were developed in order to obtain novel trifluormethyl substituted quinolines through intramolecular cyclocondensation reactions with subsequent C-C and C-N cross coupling of the Sonogashira, ...
Fitoquímica, atividades antimicrobiana e de inibição enzimática de Erythrina crista-galli (Fabaceae) e Valeriana polystachya (Caprifoliaceae) e obtenção de derivados de metabólitos de V. polystachya.
(Universidade Federal de Santa Maria, 2018-07-18)
The disorders that affect the central nervous system and infectious diseases are among the pathologies that affect the world's population and grow more and more. Thus, the search for compounds that are potentially more ...
Métodos individual e multirresidual para determinação de agrotóxicos em camas biológicas por cromatografia gasosa acoplada à espectrometria de massas
(Universidade Federal de Santa Maria, 2018-06-08)
Besides the possibility to perform determination of a large number of pesticides in only a single chromatographyc analysis using multiresidual methods, sometimes, due to diversity in pesticides chemical composition and ...
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 ...
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 ...