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Metodologia analítica para o estudo da interação de cádmio e chumbo com alguns aminoácidos presentes em soluções de nutrição parenteral
(Universidade Federal de Santa Maria, 2005-12-14)
The patients' health under treatment by Parenteral Nutrition (PN) is directly associated to the quality of the solutions used during the procedures and thus, a rigorous quality control is necessary. Among possible contaminants, ...
Conversão térmica de casca de arroz à baixa temperatura: produção de bioóleo e resíduo sílico-carbonoso adsorvente
(Universidade Federal de Santa Maria, 2005-07-29)
The exploitation of rice husks through thermal conversion at low temperature, adding economical value through its pyrolysis products, may represent a solution to the current environmental problem of discharging this ...
Desenvolvimento de um processo de separação de emulsão com o uso de radiação microondas para a caracterização de petróleo extrapesado
(Universidade Federal de Santa Maria, 2009-04-17)
In this work is proposed a procedure for separation in laboratory scale of extra-heavy
crude oil emulsions with high dissolved water and salt content, using microwave radiation in
a closed system. The emulsion was ...
Síntese de novos heterociclos a partir do ácido levulínico
(Universidade Federal de Santa Maria, 2009-01-26)
The synthesis of new compounds alkyl 3-azolyl propanoate e alkyl 3-azolyl
propanoic acid structurally analogues to gamma-aminobutiric acid (GABA) is
reported. One more time using the acetal acylation method, now the ...
Determinação de halogênios em carvão, coque petroquímico e alimentos após combustão iniciada por microondas
(Universidade Federal de Santa Maria, 2008-03-14)
The microwave-induced combustion (MIC) method was applied for coal and petroleum coke digestion for further determination of bromine, chlorine, fluorine and iodine
by ion chromatography (IC). Samples (up to 500 mg) were ...
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 ...