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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 ...
Obtenção regiosseletiva de 5-alquil(aril/heteroaril)-3- (carboxil/trifluormetil)-1h-1-fenilpirazóis
(Universidade Federal de Santa Maria, 2011-05-19)
This paper presents a new synthetic route for obtain regioselective 5-alkyl(aryl/heteroaryl)-3-trifluoromethyl-1H-1-phenylpyrazoles (3a-e) (50-85% yields) and 5-alkyl(aryl/heteroaryl)-3-carboxialkyl-1H-1-phenylpyrazoles ...
Desenvolvimento de sistema para piroidrólise para o preparo de papelão hidráulico visando a determinação de halogênios
(Universidade Federal de Santa Maria, 2014-08-14)
A pyrohydrolysis system was developed for sample preparation for halogen
determination in hydraulic cardboard. These materials are used for sealings,
mainly engines and nuclear reactors. Because of the contact of the ...
Desenvolvimento e validação de método multirresidual para determinação de pesticidas em café verde utilizando GC-MS (NCI-SIM)
(Universidade Federal de Santa Maria, 2012-01-16)
In this study, was developed and validated a multi-residue method for the
determination of 40 pesticides in green coffee beans. To obtain a very homogeneous
sample, the coffee beans were first milled, followed by a slurry ...
Patulina em maçãs armazenadas em atmosfera controlada dinâmica utilizando UPLC-MS/MS e monitoramento em supermercados
(Universidade Federal de Santa Maria, 2017-03-31)
The goal of this study was to evaluate the patulin contamination in post-harvest apples submitted to different storage conditions under controlled atmosphere (CA), in addition to apples and juices available in supermarkets. ...
Determinação multirresíduo de agrotóxicos em aveia empregando cromatografia líquida acoplada à espectrometria de massas em série
(Universidade Federal de Santa Maria, 2019-02-27)
Many pesticides are used for pest control during oat production and storage, making necessary to employ multi-class methods for pesticide residues determination. For this purpose, the QuEChERS method allows adequate sample ...
Desenvolvimento de métodos de preparo de amostras para a determinação de impurezas elementares em medicamentos de uso oral
(Universidade Federal de Santa Maria, 2019-08-02)
In this study, sample preparation methods were developed for the digestion of oral
pharmaceutical drugs used in the treatment of type 2 diabetes, with the objective of
quantifying elemental ...
Estudo fitoquímico e atividade biológica de Lupinus lanatus
(Universidade Federal de Santa Maria, 2011-01-10)
As a part of our ongoing search of new bioactive secondary metabolites of plant origin,
the aerial parts of Lupinus lanatus were subjected to phytochemical investigation.
Lupinus genus, belonging to the family of Leguminosae ...
Parabenos em efluente hospitalar: quantificação e identificação de metabólitos e subprodutos de oxidação avançada
(Universidade Federal de Santa Maria, 2013-03-22)
In this study, it was developed an analytical methodology for the quantification of parabens (PBs) in hospital effluent (University Hospital of Santa Maria - HUSM), by using solid phase extraction (SPE) followed by liquid ...
Avaliação da capacidade antirradicalar do neurosporeno: um estudo teórico
(Universidade Federal de Santa Maria, 2016-06-23)
Carotenoids are natural pigments known for being vitamin A precursors and for their important biological activities, such as antioxidant activity. In this study, the free radical scavenger capacity of neurosporene was ...