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Decomposição de carbamazepina em sistema fechado por combustão iniciada por microondas para posterior determinação de Cd, Cu e Pb
(Universidade Federal de Santa Maria, 2005-03-02)
In this work, a decomposition procedure was proposed based on sample combustion assisted by microwave radiation. Samples of carbamazepine, a medicine used in the treatment of the epilepsy were used. The decomposition of ...
Influência de modificadores orgânicos na determinação de chumbo em amostras de suplementos de cálcio por GF AAS
(Universidade Federal de Santa Maria, 2004-03-04)
The main goal of this study was to evaluate the effect of organic modifiers in the determination of lead in calcium supplement samples by graphite furnace atomic absorption spectrometry (GF AAS). Samples of refined calcium ...
Estudo da influência de modificadores químicos para a determinação de chumbo por GF AAS na presença de sulfatos
(Universidade Federal de Santa Maria, 2005-03-03)
Lead determination by graphite furnace atomic absorption spectrometry may be affected by some interferences. Several authors have reported that lead determination may be affected in the presence of some salts (carbonates ...
Determinação de enxofre em petróleo pesado resíduo de vácuo e coque por ICP OES após combustão iniciada por microondas em sistema fechado
(Universidade Federal de Santa Maria, 2007-07-31)
In this work was proposed a microwave induced combustion procedure in closed vessels for decomposition of heavy crude oil, vacuum residue and coke for further sulfur determination by inductively coupled plasma optical ...