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Desenvolvimento de metodologia para a determinação de contaminantes inorgânicos em polímeros por LA-ICP-MS
(Universidade Federal de Santa Maria, 2016-02-23)
In the present work a new calibration strategy was evaluated for further determination of As, Ba, Cd, Cr, Pb, Sr and Zn in food packaging by laser ablation and inductively coupled plasma mass spectrometry (LA-ICP-MS). The ...
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 ...
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 ...
Quantificação de cocaína, benzoilecgonina e anidroecgonina em efluente hospitalar e remoção por fotocatálise e eletrocoagulação
(Universidade Federal de Santa Maria, 2016-02-29)
In this work we studied an analytical method for identification and quantification of cocaine (COC), benzoylecgonine (BEG) and anidroecgonina (AEG) in effluent samples from the University Hospital of the Federal University ...
Combustão iniciada por micro-ondas para a absorção simultânea de metais e halogênios e determinação por ICP-MS, ISE e F AAS
(Universidade Federal de Santa Maria, 2016-03-05)
In this work, a sample preparation method using microwave-induced combustion (MIC) using a single absorbing solution was applied for further determination of both halogens and metals in biological samples. A whole milk ...
Determinação de elementos terras raras em petróleo e resíduos de destilação por USN-ICP-MS após digestão em câmara única de reação assistida por radiação micro-ondas
(Universidade Federal de Santa Maria, 2016-02-23)
In this work, a method for heavy crude oil, atmospheric residue (AR) and vacuum residue (VR) digestion using microwave-assisted wet digestion in a single reaction chamber in UltraWave® system (MAWD-SRC) was proposed. Three ...
Desenvolvimento de métodos de preparo de amostras de erva-mate para a posterior determinação de As, Cd e Pb por GF AAS e ICP-MS
(Universidade Federal de Santa Maria, 2016-08-04)
In this work, the following methods for yerba mate digestion/extraction for further determination of As, Cd and Pb by graphite furnace atomic absorption spectrometry (GF AAS) and/or inductively coupled plasma mass spectrometry ...