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Determinação de resíduos de avermectinas em soja, feijão e milho empregando método QuEChERS modificado e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-02-26)
Soybeans and beans are considered oleaginous plants of great economic importance in Brasil. Maize is a cereal that also generates profitability for the economy, but its use, to a large extent, is as animal feed. In the ...
Determinação simultânea multiclasse de fármacos em água de consumo humano empregando extração em fase sólida e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-02-26)
Pharmaceuticals are used in both human and veterinary medicine for the prevention and treatment of various diseases. The lack of adequate treatment for urban and industrial effluents associated with the incorrect disposal ...
Estudo de parâmetros reacionais em moinho de bolas na síntese de aril(heteroaril)-1h-pirazóis
(Universidade Federal de Santa Maria, 2012-08-08)
This paper describes a study of reaction parameters in a ball mill in the synthesis of
1H-pyrazole acid catalyzed. The studied parameters were: amount of reactants,
frequency, reaction time, amount of catalyst, number ...
Determinação multiclasse de agrotóxicos em camas biológicas empregando cromatografia líquida acoplada a espectrometria de massas
(Universidade Federal de Santa Maria, 2022-02-14)
Pesticides are used worldwide in the agricultural production of different crops in order to avoid losses in production due to the attack of pests and diseases. Due to the increase in food production, consequently, the ...
Determinação de compostos aromáticos nitrogenados fixos e voláteis em matrizes asfálticas empregando cromatografia líquida de alta eficiência (HPLC)
(Universidade Federal de Santa Maria, 2021-12-16)
Petroleum asphalt cement is the main source of asphalt cement today. The handling and application of the binder on the pavement is only possible with the use of high temperatures, which causes the matrix to undergo an aging ...
Determinação de cálcio em petróleo utilizando colorimetria com imagens digitais
(Universidade Federal de Santa Maria, 2022-03-18)
In this work, a method was developed for the determination of Ca in petroleum using
colorimetry with digital images with the PhotoMetrix application. For this purpose, a
portable system was used based on the capture of ...
Micelas de copolímeros em bloco à base de maltoheptaose contendo ftalocianina de magnésio para aplicação em terapia fotodinâmica
(Universidade Federal de Santa Maria, 2022-02-15)
The development of new nanocarriers for the so-called third-generation photosensitizers (FS) has contributed significantly to the evolution of photodynamic therapy (PDT). Due to its maximum absorption at wavelengths within ...
Síntese e caracterização de [2]rotaxanos: uso de eixos moleculares com estações succinamida e oxoalquil-triazol
(Universidade Federal de Santa Maria, 2022-03-04)
The following work presents the synthesis of molecular thread and molecules of rotaxanes containing two stations, succinamide and oxoalkyl-triazole. The synthetic process of the molecular thread was carried out by “click” ...
Determinação de resíduos de ditiocarbamatos, empregando cromatografia gasosa acoplada a espectrometria de massas, em erva-mate (Ilex paraguariensis) produzida na América do Sul
(Universidade Federal de Santa Maria, 2022-02-28)
Dithiocarbamates (DTC) fungicides have characteristics related to high instability when
in the presence of moisture and oxygen, thus requiring special preparation of the
sample to be worked on, as well as the development ...
Determinação de contaminates inorgânicos em nanotubos de carbono por ICP-OES e ICP-MS
(Universidade Federal de Santa Maria, 2016-03-05)
In this work, microwave-assisted wet digestion using the single reaction chamber (MAWD-SRC) and microwave-induced combustion (MIC) methods were investigated for the decomposition of carbon nanotubes (CNTs) and further ...