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Determinação de fármacos sintéticos em formulações farmacêuticas empregando métodos eletroquímicos e de separação
(Universidade Federal de Santa Maria, 2014-03-14)
The adulteration of natural pharmaceutical formulations using synthetic drugs has increased in the last years.Adulterations have been reported in the literature, which proves the increasing concern regarding this issue, ...
Isolamento, determinação estrutural e atividade microbiológica de moléculas bioativas no fungo ectomicorrízico Scleroderma UFSMSc1(Persoon)Fries
(Universidade Federal de Santa Maria, 2013-08-26)
Scleroderma UFSMSc1 spp. (Persoon:Fries) is an ectomicorrhyzal fungus of the Boletales order, Sclerodermatinae suborder and of the Sclerodermataceae family, Basideomycete, known as Gasteromycete, very common in Rio Grande ...
Avaliação de métodos de preparo de amostra para a determinação de halogênios em alumina de alta pureza
(Universidade Federal de Santa Maria, 2011-04-08)
The presence of trace elements in high purity alumina (e.g. halogens) can compromise the final product characteristics. In this work, different sample preparation methods based on alkaline fusion, halogen extraction in ...
Investigação de equilíbrios através de potenciometria e voltametria com resolução multivariada de curvas
(Universidade Federal de Santa Maria, 2012-03-09)
The interaction between the amino acid glutathione (GSH) and zinc (II) and cadmium (II) ions was investigated using data obtained by potentiometric and voltammetric measurements. Solutions with ionic strength 0.1 M KCl ...
Espécies de arsênio em moluscos bivalves determinadas por LC-ICP-MS E LC-CVG-ICP-MS após extração assistida por microondas
(Universidade Federal de Santa Maria, 2013-03-05)
In this work, the aim of this study is to evaluate sample preparation procedures and
liquid chromatography-inductively coupled plasma mass spectrometry (LC-ICP-MS) and LC
coupled to chemical vapor generation (CVG) and ...
Síntese de pirazóis e desenvolvimento de novos líquidos iônicos derivados de componentes farmacologicamente ativos
(Universidade Federal de Santa Maria, 2011-01-12)
The synthesis of two series of N-substituted pyrazoles from the cyclocondensation
reaction of β-enaminones ([R1C(O)C(R2)=CHN(Me2)], where R1 = Me, C6H5, 3-MeOC6H4,
4-Me-C6H4, 4-MeO-C6H4, 4-F-C6H4, 4-Cl-C6H4, 4-Br-C6H4, ...
Síntese e análise estrutural de compostos derivados de calcogenolatos metálicos MER (M = HgII, PdII; E = Se, Te; R = aril)
(Universidade Federal de Santa Maria, 2013-01-18)
This work presents a study related to the synthesis and structural
analysis of compounds derivatives from metal chalcogenolates - MER (M = HgII,
PdII; E = Se, Te; R = aryl). In the first step of this work were ...
Produção biotecnológica de exopolissacarídeo por meio de conversão químico-fermentativa de casca de arroz
(Universidade Federal de Santa Maria, 2018-07-13)
The rice husk (RH) conversion in products with industrial and pharmaco-chemical attention aimed to use this raw lignocellulosic material, renewable and abundant in the south of Brazil, mainly at RS state ─ yet with no ...
Similaridade de estruturas supramoleculares em cristais orgânicos: proposta de índices quantitativos
(Universidade Federal de Santa Maria, 2018-06-20)
This investigation reports the proposal of a new method to obtain quantitative indexes of
similarity in crystals, using the supramolecular cluster as study demarcation. A series of
tert-butyl pyrazoles were used as models ...
Estudo de reações de flúor-inserção em 1H-pirazóis utilizando os reagentes fluorantes selectfluor, DAST e MFSDA
(Universidade Federal de Santa Maria, 2015-08-19)
This thesis describes the studies carried out using fluorinating reagents with different approaches: Selectfluor as an electrophilic fluorine source; DAST for nucleophilic fluorinations and MFSDA as a nucleophilic ...