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Análise estrutural de polímeros bidimensionais de fosfinatos de metais alcalinos e alcalinos terrosos
(Universidade Federal de Santa Maria, 2006-03-03)
In this work, the structures of three alkali and alkali-earth metal complexes of
phenylphosphinate ligands and ethylphosphinate ligands, (4) catena-poli-
[Ba(O2PHPh)2(OH2)], (5) catena-poli-[Na(O2PHPh)] e (6) ...
Pré-tratamento das vitaminas B1, B2, B3, B6 , BB12 e C para a determinação de cádmio e chumbo por voltametria de redissolução anódica
(Universidade Federal de Santa Maria, 2005-07-25)
The present work approaches pretreatment steps for the determination of
cadmium and lead, as contaminants, in water soluble vitamins of samples, vitamins B1,
BB2, B3, B6, B12, and C, for anodic stripping voltammetry ...
Antimicrobiais sulfametoxazol e trimetoprima em efluente hospitalar: determinação, degradação através de eletrocoagulação e identificação de subprodutos e metabólitos
(Universidade Federal de Santa Maria, 2009-03-03)
In this study, it was developed a methodology using liquid chromatography coupled to tandem mass spectrometry for the determination of antimicrobials sulphamethoxazole and trimethoprim in hospital effluent and for monitoring ...
Pirazolo[1,5-a]pirimidinas: síntese e bromação
(Universidade Federal de Santa Maria, 2006-01-27)
The synthesis of a series of 2-methyl-7-trichloromethylpyrazolo[1,5-a]pyrimidines from the cyclocondensation reaction of 3-amino-5-methylpyrazole with 1,1,1-trichloro-4- alkoxyalk-3-en-2-ones [CCl3C(O)CH=C(R1)OR where R1 ...
Estudo da interação entre as vitaminas lipossolúveis com cádmio e chumbo por ASV em meio orgânico
(Universidade Federal de Santa Maria, 2006-09-15)
In this work two voltammetric methods were investigated to study the interaction between metals, Cd and Pb, and fat-soluble vitamins (retinol palmitate VA; cholecalciferol VD; α-tocopherol acetate VE; filloquinona - ...
Estudo fitoquímico e da atividade antimicrobiana de Waltheria douradinha Saint Hilaire
(Universidade Federal de Santa Maria, 2006-07-31)
Native species of the flora from South Brazil are the aim of the research of the Núcleo de Pesquisa de Produtos Naturais of Federal University of Santa Maria, Brazil. One of the most studied families is the Sterculiaceae ...
Determinação de metais como contaminantes em formulações de eritropoetina empregando métodos voltamétricos
(Universidade Federal de Santa Maria, 2007-07-20)
The contamination of renal failure patients by metals can be associated to the presence of these metals in the medication, since they can be absorbed by the organism. The level of contamination caused by medication, in ...
Tratamento de efluente da produção de trifluralina por oxidação-coagulação com ferrato de potássio e processos fenton combinados
(Universidade Federal de Santa Maria, 2006-10-27)
The so called amination water (AW), an effluent stream from the industrial production of the trifluraline herbicide, toxic and recalcitrant to conventional treatments such as the microbiological, was submitted to a combined ...
Especiação de compostos de arsênio em águas e fluidos biológicos empregando pré-tratamento fotoquímico e métodos voltamétricos
(Universidade Federal de Santa Maria, 2007-12-21)
The presence of arsenic as a contaminant in water and biological fluids has been studied in recent years due to the high toxicity of this element. In this work a method for the selective determination of arsenic species ...
Investigação de complexos binucleares de K+ E CU(II) com ligantes 1,3-diariltriazenidos simétricos
(Universidade Federal de Santa Maria, 2006-12-15)
At work present it synthesized and determined itself the molecular structure of a copper complex (II) and another of potassium in which both involve triazenides ligands
monocatenados previously deprotonated. The reaction ...