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Avaliação de métodos de preparo de amostras para posterior determinação de contaminantes inorgânicos em cápsulas de uso farmacêutico
(Universidade Federal de Santa Maria, 2014)
In this work, sample preparation methods were proposed, microwave-induced combustion (MIC) and microwave-assisted wet digestion (MAWD), for further Br, Cl, Cr, Cu, I and Mn determination in pharmaceutical capsules. For Cl, ...
Nanotubos de carbono de paredes múltiplas dopados com nitrogênio e decorados com nanopartículas de paládio e suas aplicações em reações de catálise
(Universidade Federal de Santa Maria, 2016-02-05)
The present work describes the synthesis of a new catalyst of palladium nanoparticles supported on multi-walled carbon nanotubes containing nitrogen (Pd@CNxNCPM) 1 and its use in carbon-carbon coupling reactions (Suzuki ...
Agrotóxicos em óleos comestíveis: avaliação de procedimento de purificação de extrato empregando diferentes adsorventes e validação por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2016-12-16)
The goal of this study was to evaluate the efficiency of several adsorbents on fat removal from extracts of edible oil matrices (olive, soya and sunflower) during residue determination of 165 pesticides employing liquid ...
Síntese de pirrolocumarinas via nitroestirenos e de novos selenetos derivados da cumarina
(Universidade Federal de Santa Maria, 2017-03-08)
This work describes the synthesis of pyrrolo[3,2-c]coumarins from 4-aminophenylcoumarins and nitrostyrenes (17 examples), which were obtained in yelds between 6 and 76 % in a reaction catalised by PTSA.H2O and under ...
Agrotóxicos em vinho: avaliação do método QuEChERS e da microextração líquido-líquido dispersiva na determinação multirresíduo por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2017-03-10)
The widespread use of pesticides in agriculture has brought many benefits such as, increasing quantity and quality of crops grown. However, there is a concern regarding to the presence of pesticide residues in the consumed ...
Síntese e avaliação biológica de calcogeno-oxadiazóis e calcogenotetrazóis
(Universidade Federal de Santa Maria, 2017-02-24)
This work first describes the synthesis of the starting materials, the 1,2,4- and 1,3,4-oxadiazoles, from arylamidoximes and arylhydrazides derivatives, respectively. These two precursors were previously reacted with the ...
Síntese e caracterização de complexos organometálicos de Cu(I), Cu(II) e Ni(II) com ferroceno-triazenos e triazenido de Hg(II) com interação Metal-Areno-Pi
(Universidade Federal de Santa Maria, 2016-01-29)
This Thesis aimed the synthesis of new metal complexes with triazenido ligands and triazenes chains directly linked to ferrocene fragment by a new synthesis methodology. The complex bis-[1,3-bis(2-biphenyl)triazenido-κN1 ...
Novos corantes moleculares derivados de sulfetos vinílicos: síntese e propriedades fotofísicas
(Universidade Federal de Santa Maria, 2017)
This thesis describes, initially, the synthesis and photophysical characterization
of new sulfides,sulphoxides and vinyl sulfones based dyes. The compounds in question
were obtained in good yields and good diastereoselectivity ...
Síntese e avaliação farmacológica de 7-amino-espiro[cromeno[4,3-b]quinolina-6,1’-cicloalcanos] e derivados
(Universidade Federal de Santa Maria, 2017)
The present thesis describes the synthesis and pharmacological evaluation of new tacrine structural analogues, as well as N-derivation reactions and C-C and C-N coupling on these compounds. By this way, a series of ...
Avaliação da técnica de extração sortiva em disco rotatório (RDSE) para determinação multirresíduo de agrotóxicos em água por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2017-02-24)
The use of pesticides in agriculture and urban areas has always been associated with advantages and disadvantages. As benefits, the increase of the productivity of crops and the control of vectors that cause diseases can ...