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Determinação multiclasse de resíduos de agrotóxicos e medicamentos veterinários em carnes por LC-MS/MS
(Universidade Federal de Santa Maria, 2012-03-23)
The agribusiness has been incorporating new technologies in the production of
meat, including good management of farms, health, balanced diet, breeding and
integrated production. Allied to this, there is a growing concern ...
Avaliação da capacidade antioxidante in vitro e in vivo contra radicais peroxila e hidroxila em amostras de plantas medicinais
(Universidade Federal de Santa Maria, 2010-07-26)
The present work reports the development of new methodologies to evaluate the in vitro and in vivo antioxidant capacity against peroxyl and hydroxyl radicals in five medicinal plant samples (Matricaria chamomilla L., Psidium ...
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 ...
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 ...
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 ...
Identificação e determinação de fármacos ansiolíticos e antiepilépticos e seus metabólitos em efluente hospitalar
(Universidade Federal de Santa Maria, 2012-12-06)
A new analytical methodology was developed in order to investigate the presence of five psychoactive
drugs (anxiolytic and antiepileptics), namely, bromazepam, carbamazepine, clonazepam, diazepam, and
lorazepam in the ...