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Determinação sequencial de contaminantes inorgânicos em formulações minerais e fitoterápicas empregando métodos voltamétricos
(Universidade Federal de Santa Maria, 2011-07-12)
In this work, the voltammetric determination of the sequential elements Uranium, Vanadium, Antimony, Cadmium, Lead, Zinc, Chromium and Thallium have been studied in several arrays considering that all these elements are ...
Conversão pirolítica de bagaço residual da indústria de suco de laranja e caracterização química dos produtos
(Universidade Federal de Santa Maria, 2009-08-10)
The management of bagasse, orange pelleted, waste residual biomass of the food s industry, as substrate of pyrolytic conversion, will meet the global trend of turning waste into value-added products, and energy inputs, ...
Desenvolvimento de metodologias para a especiação de arsênio em águas e matrize salinas empregando voltametria adsortiva de redissolução catódica
(Universidade Federal de Santa Maria, 2005-01-20)
The present work reports the development of methodologies for the arsenic speciation in waters and saline matrices by adsorptive cathodic stripping voltammetry (AdCSV). The determination of As(III) by AdCSV was investigated ...
Estudo dos metabólitos secundários de Condalia buxifolia e Scutia buxifolia e suas atividades antimicrobianas
(Universidade Federal de Santa Maria, 2005-11-30)
The present work describes the study of the secondary metabolites of two species that belong to the Rhamnaceae family: Condalia buxifolia and Scutia buxifolia, and the study of the ratio structure/activity of seven ...
Agrotóxicos em milho: otimização e validação de método multirresíduo empregando GC-MS/MS
(Universidade Federal de Santa Maria, 2013-02-28)
Due to the complexity of its matrix, more efficient methods have been studied
for the determination of pesticide residues in maize. The use of QuEChERS method
coupled to low temperature clean up technique has showed ...
Síntese, análise estrutural e avaliação mimética da atividade catalítica da superóxido dismutase de complexos de cobre derivados de hidrazidas aromáticas
(Universidade Federal de Santa Maria, 2018-08-03)
This work presents the synthesis, characterization of copper (II) complexes and the
potential of these compounds to mimic the catalytic activity of the enzyme superoxide
dismutase.
The complexes were obtained from the ...
Síntese e cristaloquímica do 1-(4-carboxifenil)-3-(4-acetilamidofenil)triazeno e complexos de cobre(i), prata(I) e ouro(I) com o ligante 1-(4-nitrofenil)-3-(4-etoxicarboxifenil)triazenido
(Universidade Federal de Santa Maria, 2007-12-05)
This work deals with the determination of the single crystal structure analysis of four triazenido complexes including gold(I), copper(I), silver(I), and the crystal
structure of a free triazene molecule. Crystal data and ...
Validação de método multirresídual e monitoramento de resíduos de agrotóxicos por GC-μECD em méis do estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2019-03-12)
Due to the complexity of matrices such as honey and the low concentrations of pesticides,
there is a great need for the development of efficient and reliable analytical methods for the
identification and quantification ...
Síntese sequencial linear de 6-((1,2,3-triazol-4-il)metil)-4,5- dimetil-2,6-di-hidro-1h-pirrolo[3,4-d]piridazinonas via reações de N-alquilação, CuAAC e ciclocondensação
(Universidade Federal de Santa Maria, 2017-09-21)
This dissertation presents a synthetic route for obtaining a series of eight 6-((1H-1,2,3-
triazol-4-yl)methyl)-1H-pyrrolo[3,4-d]pyridazin-1-ones with yields of 40-70%. The synthetic
route comprises three distinct steps: ...
Síntese, análise cristalográfica e atividade biológica de complexos com ligantes triazenidos com fragmentos orto-halofenila e para-sulfonamidafenila
(Universidade Federal de Santa Maria, 2013-03-08)
This study shows the triazenes ligands and complexes Pd(II), K+ and Au(I) obtained from reactions of the ligands with fragments para-sulfonamidephenyl, comprising triazene ligand 1,3-bis (4 - sulfonamidephenyl) (1) and the ...