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Itens para a visualização no momento 321-330 of 365
Concepção, construção e avaliação de fotorreatores catalisados na degradação de carga poluente e amoxicilina em efluente hospitalar
(Universidade Federal de Santa Maria, 2008-09-13)
The focus of this study was the application of advanced oxidation photoprocesses, heterogeneous photocatalysis and photo-Fenton, in the degradation of pollutant load and amoxicillin in wastewater from the University Hospital ...
Emprego de multiatomizador de quartzo para a minimização de interferências e determinação de arsênio por HG AAS em antimoniais pentavalentes
(Universidade Federal de Santa Maria, 2008-03-06)
A systematic study was made to evaluate the interference of hydride forming elements in conventional quartz tube atomizers as well as to study the performance of
multiatomizer of quartz (MMQTA) for minimization of these ...
Heterociclização entre 4-alcóxi-1,1,1-triflúor-3-alquen-2-onas e hidrazonas: metodologias seletivas para a obtenção de heterociclos trifluormetilados
(Universidade Federal de Santa Maria, 2009-07-31)
Several methods for the regioselective synthesis of trifluoromethylated heterocycles from 4-alcoxy-1,1,1-trifluoro-3-alken-2-ones and hydrazones are described. In the first part of this work, a series of (E)-2-[N ...
Síntese e caracterização estrutural de novos compostos de índio (II) e índio(III)
(Universidade Federal de Santa Maria, 2008-03-17)
This work presents the synthesis and crystallographical study of indium organometallic compounds series in II and III oxidation states. Br2In(diox)2CH2Br and tetrahedral indium cluster, In4R4 [R = C(SiMe3)3], were adopted ...
Efeitos do ultrassom na preparação de emulsões do fluconazol usando líquidos iônicos N-alquil-N-metilimidazolíneos
(Universidade Federal de Santa Maria, 2020-10-27)
Fluconazole is an active drug against a wide spectrum of species of fungi, this compound is used to treat
superficial and systemic fungal infections. However, this medicine has dissolution problems, which causes
limitations ...
Produção biotecnólogica de ácido succínico a partir de casca de arroz
(Universidade Federal de Santa Maria, 2013-12-16)
Rice husk is a subproduct of the food industry, rich in carbohydrates, which can be partially
fractionated and converted into fermentable sugars. In this work, it was investigated the best
conditions for the conversion ...
Antiandrogênios em efluente hospitalar: extração com barras poliméricas, quantificação, identificação de metabólitos e subprodutos, proposição de rotas de degradação por processos avançados de oxidação
(Universidade Federal de Santa Maria, 2013-04-12)
In this work, methods were developed for the determination of antiandrogens in hospital
effluent using the analytical technique HPLC-DAD. Microextraction techniques of
Spironolactone, Flutamide, Cyproterone and Tamoxifen ...
Síntese, cristalografia e propriedades de ligantes triazenos mono e biscatenados e derivados complexos de Cu(II), Ni(II) e Pd(II)
(Universidade Federal de Santa Maria, 2013-04-30)
Triazenes are a class of compounds characterized by the presence of a diazoamino functional group (N=N N) showing remarkable ability to support the stereochemical requisites of a wide variety of metal transition complexes. ...
Síntese de 1,1,1-tricloro-4-metoxi-3-alquen-2-onas com cadeias graxas e suas derivatizações para isoxazóis e alcoxicarbonil-1H-pirazóis graxos
(Universidade Federal de Santa Maria, 2013-03-05)
This project presents the acylation methods of acetals applied for chemoseletive synthesis of greases 1,1,1-trichloro-4-methyl-3-alquen-2-ones derived from alkyl methyl ketones and dialkyl ketones, including those with ...
Emprego de oxigênio e peróxido de hidrogênio como auxiliares na decomposição de amostras biológicas por via úmida assistida por radiação micro-ondas
(Universidade Federal de Santa Maria, 2012-07-02)
In the present work it was investigated the possibility of using diluted HNO3 solutions for digestion of biological samples (milk powder and bovine liver) by microwave-assisted wet digestion. The possibility of use O2 and ...