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Síntese de 1h-pirazóis usando irradiação de ultra-som e de 2-pirrolonas derivadas do ácido levulínico
(Universidade Federal de Santa Maria, 2008-11-25)
This work describes the synthesis of 4,5-dihydropirazoles through a sonochemical methodology, from the reaction of cyclocondensation of 1,3-diaryl-2-propen-1-ones with aminoguanidine hydrochloride and thiosemicarbazide. ...
Síntese de heteroarilazóis trialometilsubstituídos a partir de 2-acetilfurano e 2-acetiltiofeno
(Universidade Federal de Santa Maria, 2004-04-07)
The synthesis of 1,1,1-trihalo-4-methoxy-4-[2-thienyl]-3-buten-2-ones, 1,1,1-trihalo-4-methoxy-4-[2-furyl]-3-buten-2-ones and the respective trihalomethyl 1,3-butanone derivatives by trihaloacylation of dimethoxy acetals
derived ...
Síntese e análise estrutural de novos tetrahaloorganoteluratos(IV) monoaniônicos e hexahaloteluratos(IV) dianiônicos
(Universidade Federal de Santa Maria, 2004-09-21)
This work presents our contribution about the solid state of new anionic tetrahaloorganyltellurates(IV) and dianionic hexahalotellurates(IV) compounds. We
present the synthesis and structural characterization of seven new ...
Determinação simultânea de sulfametoxazol e trimetoprima em formulações farmacêuticas por ATR-FTIR e DRIFTS empregando calibração multivariada
(Universidade Federal de Santa Maria, 2008-03-10)
A partial least-squares calibration (PLS) procedure in combination with infrared spectroscopy has been developed for simultaneous determination of sulphamethoxazole (SMZ) and trimethoprim (TMP) in raw material powder ...
Cefalosporinas e surfactante não-iônico em efluente hospitalar: determinação, degradação por meio de fotólise e eletrocoagulação e identificação de subprodutos e metabólitos
(Universidade Federal de Santa Maria, 2009-04-06)
The currently incorrect and excessive consumption of pharmaceuticals and surfactants, mainly domestic usage, has become a concern to the scientific community around the world, due to the environmental consequences with ...
Síntese de ciclodextrinas pentafluorpropioniladas e suas aplicações como fases estacionárias quirais em cromatografia gasosa enantiosseletiva
(Universidade Federal de Santa Maria, 2008-12-05)
Three new α, β- and γ-cyclodextrins derivatives were synthesized: hexakis-(2,6-di-O-pentyl)-α-cyclodextrin, heptakis-(2,6-di-O-pentyl)-β-cyclodextrin and octakis-(2,6-di-O-pentyl)-γ-cyclodextrin. The structures were ...
Estudo fitoquímico de três espécies pertencentes à família Rhamnaceae: Discaria americana, Colletia paradoxa e Gouania ulmifolia
(Universidade Federal de Santa Maria, 2005-08-26)
The present work describes the phytochemistry study and antimicrobial activity of the aerial parts and bark root of three species from Rhamnaceae family: Discaria americana Gilles & Hook, Colletia paradoxa Sprengel and ...
Determinação de arsênio e cromo em insumos farmacêuticos contendo enxofre por espectrometria de absorção atômica com forno de grafite e análise direta de amostras sólidas
(Universidade Federal de Santa Maria, 2007-09-17)
In this work a procedure was developed using direct solid sampling (DSS) and graphite furnace atomic absorption spectrometry (GF AAS). The study was applied to the determination of As in hydrochlorothiazide and barium ...
Uso de pastagem de gramíneas de estação quente na recria de novilhas de corte
(Universidade Federal de Santa Maria, 2009-08-14)
The experiment was carried out to evaluate attributes of pastures and relazed to ingestive behavior, the animal performance and reproduction of beef heifers reared from 15 to 18 months and bred at 18/20 months of age. In ...
Densidade de estocagem, níveis protéicos e lipídicos da dieta na produção e aceitabilidade do filé de jundiá
(Universidade Federal de Santa Maria, 2008-12-09)
This study was conducted to evaluate growth, lipid profile, metabolism and
fillet aceitability of jundiá. For this purpose four experiments were conducted in a
completely randomly design, where jundiás of the same genetic ...