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Síntese e análise estrutural de polímeros de coordenação e compostos moleculares derivados de Hg(TeAr)2
(Universidade Federal de Santa Maria, 2012-07-27)
This work presents a study related to the synthesis and structural analysis of
coordination polymers and molecular compounds derived from Hg(TeAr)2. Was used
as starting reagents some Hg(TeAr)2, considered basic building ...
Novos sulfetos e sulfonas fluorescentes: síntese e estudo das propriedades fotofísicas
(Universidade Federal de Santa Maria, 2012-08-03)
In this study, we performed the synthesis of new symmetrical vinyl sulfides 2-4 by Wittig-Horner reaction of aldehydes derived from diphenyl-, triphenylamine and carbazole with bis[(diphenylphosphinyl)methyl]sulfide 1. The ...
Constituintes químicos de óleos voláteis de plantas medicinais do Rio Grande do Sul: isolamento, determinação estrutural e atividade biológica.
(Universidade Federal de Santa Maria, 2012-05-04)
The essential oils of six species of plants wild in south Brazil, were investigated as for its chemical composition, antibacterial activity and antioxidant potential. The selected species for this study were Calea clematidea ...
Avaliação da técnica de extração de SPE e GC-(EI)-MS/MS na análise de agrotóxicos em água de lavoura de arroz irrigado
(Universidade Federal de Santa Maria, 2012-02-14)
It is known that heavy use of pesticides, especially herbicides and
insecticides, associated with the improper management of irrigation water
can result in pesticide runoff out the crops to the waters streams, rivers ...
Bário em soluções de nutrição parenteral e medicamentos: origem, níveis de contaminação e avaliação da distribuição no organismo em modelo animal
(Universidade Federal de Santa Maria, 2012-03-21)
Barium (Ba) contamination in solution for parenteral nutrition (PN) and drugs was
studied. The concentration of Ba was determined by F-AAS in glass and plastic packaging
used to store the formulations, since the compounds ...
Síntese e análise estrutural de clusters binários e ternários derivados de bis(fenilselenolato) de mercúrio Hg(SePh)2
(Universidade Federal de Santa Maria, 2012-03-30)
This work deals with the synthesis and structural analysis of binary and
ternary clusters derivatives from mercury bis(phenylselenolate) - Hg(SePh)2.
The reaction of Hg(SePh)2 with Mg(II), Fe(II), Co(II) and Ni(II) metal ...
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 ...
Estudo de parâmetros reacionais em moinho de bolas na síntese de aril(heteroaril)-1h-pirazóis
(Universidade Federal de Santa Maria, 2012-08-08)
This paper describes a study of reaction parameters in a ball mill in the synthesis of
1H-pyrazole acid catalyzed. The studied parameters were: amount of reactants,
frequency, reaction time, amount of catalyst, number ...
Determinação voltamétrica de contaminantes metálicos (Hg, Ag, Zn, Cd, Pb e Tl) em concentrado polieletrolítico utilizando eletrodos sólidos
(Universidade Federal de Santa Maria, 2012-03-08)
This work describes the voltammetric determination of Hg, Ag, Zn, Cd, Pb and Tl
using solid electrodes as working electrodes in samples of dialysate concentrates
(DCs). These contain a very high ionic strengt (~ 4.1 mol ...
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 ...