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Síntese e atividades antimicrobiana/antioxidante de 5-trifluormetil-5-hidróxi-4,5-diidro-1h-pirazóis 1-(2-naftoxiacetil), 1-fenoxiacetil, 1-tiofenoxiacetil, 1-(n-fenilglicina) substituídos
(Universidade Federal de Santa Maria, 2011-07-01)
This work describes an efficient approach for the regioselective synthesis of
new series of substituted 1-(2-naphthoxyacetyl), 1-phenoxyacetyl, 1-thiophenoxyacetyl,
1-(N-phenylglicine)-5-trifluoromethyl-5-hydroxy-4,5-dih ...
Avaliação de métodos de preparo de amostras para a determinação de cloro em temperos
(Universidade Federal de Santa Maria, 2012-05-24)
In this study, sample preparation methods were evaluated for the
determination of chlorine by ion chromatography (IC) in spice samples. The
microwave-induced combustion method (MIC) was tested using certified ...
Especiação de mercúrio em cogumelos por LC-CVG-ICP-MS: avaliação de procedimentos de extração
(Universidade Federal de Santa Maria, 2009-07-31)
In this work, different sample preparation procedures for determining inorganic (in Hg2+ form) and organic mercury (in methylmercury form CH3Hg+) in edible mushrooms were evaluated. Conventional, microwave (MW) and ...
Metodologia para a determinação de cátions inorgânicos em formulações minerais e fitoquímicas por eletroforese capilar com detecção condutométrica
(Universidade Federal de Santa Maria, 2010-11-18)
The selective determination of inorganic cations, like alkaline, earth-alkaline, of
transition and the ammonium ion (NH4
+) is considered as a difficult practice, because
generally, these ions show very close apparent ...
Reações de enonas trialometilsubstituídas com aminas e diaminas: Síntese de análogos do etambutol
(Universidade Federal de Santa Maria, 2010-02-24)
A series of 5,5,5-trifluoro-3-methyl-(alkylmethylamino)-pentane-1,4-diols, 5,5,5-trifluoro-3-methyl-(arylmethylamino)-pentane-1,4-diols and N,N-bis[5,5,5-
trifluoro-3-methyl-(alkylmethylamino)]-pentane-1,4-diols were ...
Determinação de As, Bi, Sb, Se, Sn e Te por injeção em fluxo com geração de hidretos acoplada a espectrometria de massa com plasma indutivamente acoplado
(Universidade Federal de Santa Maria, 2010-07-23)
In this work it is proposed the development of flow injection systems for hydride generation coupled to inductively coupled plasma mass spectrometry (FI-HG-ICPMS)
for determination of trace elements (As, Bi, Sb, Se, Sn and ...
Determinação de cloridrato de propranolol em medicamentos por espectroscopia no infravermelho com calibração multivariada (PLS)
(Universidade Federal de Santa Maria, 2005-07-21)
In this work calibration multivariate models were developed with the use of the technique of partial least scores (PLS) for the dosage of tablets of propranolol hydrochloride using infrared spectroscopy. Samples were ground ...
Análise de dados de RMN, deslocamentos químicos e constantes de acoplamento do sistema de hidrogênios ABX em 3,5-diaril-4,5-diidro-1H-pirazóis
(Universidade Federal de Santa Maria, 2012-09-10)
This dissertation first describes the collection of literature data among the years 2005 to 2011 for the subsequent data analysis of 1H NMR chemical shifts and coupling constants and 2JHH 3JHH with emphasis on the synthesis ...
Sintese, análise estrutural e supramolecular de complexos triazenido de Ag(I), Cd(II) E Zn(II)
(Universidade Federal de Santa Maria, 2011-05-23)
In this work was synthesized and determined the crystal and molecular
structure of two silver triazenide complexes, two cadmium triazenide complexes
and a zinc triazenide complex. The complexes
{Ag[C12H9N2NNNC6H4(NO2)](C5H5N)}2 ...
Determinação de cádmio, cobre e chumbo em catalisadores por espectrometria de absorção atômica com forno de grafite e amostragem direta de sólidos
(Universidade Federal de Santa Maria, 2006-07-26)
Trace impurities of Cd, Cu and Pb were determined in alumina-based catalysts using direct solid sampling graphite furnace atomic absorption spectrometry (DSS-GF AAS). The analyzed catalysts are widely used in petrochemical ...