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Decomposição de carvão com elevado teor de cinzas para determinação simultânea de As, Cd, Hg, Pb e S por ICP-OES
(Universidade Federal de Santa Maria, 2015-09-21)
In this work, sample preparation methods for decomposition of coal with high ash content (14-
54%) for further simultaneous determination of As, Cd, Hg, Pb and S by inductively coupled
plasma optical emission spectrometry ...
Determinação de impurezas inorgânicas em suplementos de ferro por DSS-GF AAS
(Universidade Federal de Santa Maria, 2010-01-18)
In this work a methodology for determination of inorganic impurities (Ag, As, Cr, Mn, Ni, Pb e Sb) by direct solid sampling with graphite furnace atomic absorption spectrometry (DSS-GF AAS) in iron glycinate chelate samples ...
Avaliação de diferentes sistemas de extração assistida por ultrassom para determinação de As, Cd, Cr, Ni e Pb em solo e sedimento
(Universidade Federal de Santa Maria, 2016-03-10)
In this study a sample preparation method using ultrasound-assisted extraction (UAE) for further determination of As, Cd, Cr, Ni and Pb in soil and sediment by inductively coupled plasma mass spectrometry (ICP-MS) was ...
Análise fitoquímica e estudo das atividades antimicrobiana, antioxidante e de inibição da enzima acetilcolinesterase da espécie Helietta apiculata Benth
(Universidade Federal de Santa Maria, 2011-07-20)
The phytochemical research of crude extract of the bark metanólico and stem fractions of Helietta apiculata Benth, Rutaceae, led to the isolation of four alkaloids furoquinoline (γ-fagarine (9), Maculine (24), Kokusaginine ...
Determinação de cloreto em petróleo por espectrometria de absorção molecular de alta resolução com forno de grafite e fonte contínua
(Universidade Federal de Santa Maria, 2015-07-14)
In this work some procedures were proposed in order to enable the determination of
chlorine in petroleum by using high resolution continuum source graphite furnace and
molecular absorption spectrometry (HR-GF-MAS). ...
Avaliação de métodos de preparo de amostras para a determinação de halogênios em plantas medicinais
(Universidade Federal de Santa Maria, 2015-07-21)
In this work, four sample preparation methods were evaluated for further determination of halogens (F, Cl, Br e I) in medicinal plants. The evaluated sample preparation methods were microwave-induced combustion (MIC), ...
Síntese e atividades antimicrobiana/antioxidante de 1-(pirazolin-1-il)-2-[(aril/heteroaril)metileno] carboidrazidas trifluormetil substituídas
(Universidade Federal de Santa Maria, 2010-09-16)
This work initially describes the regioselective synthesis of a series of 3-alkyl(aryl/heteroaryl)-5-trifluoromethyl-5-hydroxy-4,5-dihydro-1H-pyrazole-1-carbohydrazides (2) from the monocyclocondensation reaction of ...
Síntese, nanoencapsulamento e atividade biológica de compostos triazenos
(Universidade Federal de Santa Maria, 2012-02-01)
Compounds featuring triazenidic units constitute a versatile class of molecules for the preparation of new inorganic complexes with broad applications that include cancer therapy such as leukemia treatment. Gold-triazenide ...
Síntese de novos sulfetos, sulfóxidos e sulfonas vinílicas derivados do N-fenilpirazol
(Universidade Federal de Santa Maria, 2013-03-01)
Não foi possível inserir o abstract.
Síntese de 1h-1,2,3-triazol-4-il-1,3,4-oxadiazóis a partir de 4-alcóxi-1,1,1-tricloro-3-alquen-2-onas
(Universidade Federal de Santa Maria, 2014-09-12)
This work describes the synthesis and the characterization of series of substituted trichloroacetyl 1H-1,2,3-triazoles (10 12), 1H-1,2,3-triazol-4-yl-carbohydrazides (14 16) and 1H-1,2,3-triazol-4-yl-1,3,4-oxadiazoles ...