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Determinação de halogênios em mel após decomposição com peróxido de hidrogênio usando sistema de alta pressão
(Universidade Federal de Santa Maria, 2016-02-12)
In this work the sample preparation method for honey decomposition using H2O2 in alkaline medium at high pressure system for further determination of F, Cl, Br and I was evaluated. In this way, some parameters such as ...
Avaliação energética do uso de álcoois combustíveis em motores de combustão interna
(Universidade Federal de Santa Maria, 2016-03-29)
The present work studies the use of a two-zone computer model to simulate the operation of an internal combustion engine with spark ignition fueled with alcohol fuels and gasohol. To fit the model to the experimental data, ...
Determinação de contaminantes emergentes em água utilizando microextração adsortiva em barra (BAμE) e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2016-08-25)
The emerging pollutants are substances that enter continuously in the environment and are being more recognize due to the advancement of instrumental and sample preparation techniques. These contaminants include several ...
Determinação de corantes sintéticos em bebidas isotônicas empregando extração em fase sólida dispersiva e HPLC-UV/Vis
(Universidade Federal de Santa Maria, 2016-08-05)
Sports drinks are specially formulated for people who are undertaking physical activity, being mainly composed by carbohydrates, electrolytes and vitamins. Synthetic dyes are food additives commonly used in sports drinks ...
Desenvolvimento de método de quantificação de estatinas em efluente hospitalar e estudo de degradação oxidativa avançada
(Universidade Federal de Santa Maria, 2015-12-18)
In this study, an analytical method was developed for the quantification of statins Atorvastatin and Simvastatin, in hospital effluent (University Hospital of Santa Maria, using Solid phase extraction and Dispersive ...
Decomposição assistida por radiação micro-ondas e ultravioleta para posterior determinação de níquel, vanádio e enxofre em coque de petróleo
(Universidade Federal de Santa Maria, 2013-07-12)
The presence of Ni, V and S in petroleum coke is undesirable because can cause poisoning in catalysts used in refining processes and problems during the coke burning such as SOX emissions, abrasion and fouling of the ...
Decomposição de polímero à base de enxofre para posterior determinação de Ca, Fe e Na por ICP OES
(Universidade Federal de Santa Maria, 2010-01-18)
In this work different procedures were evaluated for the decomposition of a
sulfur-based commercial polymer, with subsequent Ca, Fe and Na determination,
elements present in additives, using inductively coupled plasma ...
Estudo do óleo essencial e extrato hexânico da casca do caule de Schinus lentiscifolius
(Universidade Federal de Santa Maria, 2015-04-06)
Many advances in science and industry were inspired by research in natural products, and play an important role in the evolution of organic synthesis, as many methods have been inserted by the efforts in the total synthesis ...
Determinação voltamétrica de tiofenos, sulfetos, sulfóxidos e sulfonas em matrizes asfálticas empregando eletrodo de mercúrio
(Universidade Federal de Santa Maria, 2016-02-26)
Sulfur compounds in petroleum asphalt cement (CAP) are related to quality parameters such as reactivity, corrosivity, pollution potential and are directly related to the aging of the asphalt. In this work, a voltammetric ...
Síntese e caracterização de complexos metálicos (CuI,CuII,CoII, PdII) derivados do ligante 2-(2-piridilselanometil)piridina
(Universidade Federal de Santa Maria, 2018-10-29)
This work presents the synthesis and characterization of eight compounds derived from a new synthesis methodology of the 2-picolyl selonopyridine linker with metals of different hardness. All the compounds had their structure ...