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Determinação de cloro, enxofre, cobalto, níquel e vanádio em petróleos após combustão iniciada por micro-ondas em frascos descartáveis
(Universidade Federal de Santa Maria, 2020-11-26)
In this work, sample preparation methods based on microwave-induced combustion in disposable vessel (MIC-DV) for the determination of Cl, S by ICP OES, Co, Ni and V by ICP-MS in petroleum were developed. The main operational ...
Determinação de resíduos de glifosato e ácido aminometilfosfônico em água empregando derivatização com FMOC-Cl e LC-MS/MS
(Universidade Federal de Santa Maria, 2020-02-21)
A simple and easy method based on the derivatization for determinação of glyphosate and aminomethylphosphonic acid (AMPA) in water and subsequent determination by liquid chromatography coupled with mass spectrometry in ...
Determinação multirresíduo de agrotóxicos em água empregando SPE e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2020-03-02)
The presence of organic pollutants in water resources is a major concern. The most commonly reported of these pollutants are generated by domestic, agricultural and industrial activities. Organic pollutants produce a wide ...
Determinação multirresíduo de agrotóxicos em tomate, beterraba e cenoura empregando QuEChERS modificado e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2020-04-17)
Beet, carrot and tomato are foods with a high content of water, sugars and pigments, which are among the most cultivated and consumed vegetables worldwide and frequently contain pesticide residues. Therefore, a simple ...
Desenvolvimento de método utilizando a microextração líquido-líquido dispersiva em fase reversa para determinação de As, Cd, Hg, Pb, Co, Ni e V em excipientes farmacêuticos oleosos
(Universidade Federal de Santa Maria, 2021-03-05)
In this study, an extraction method using oily pharmaceutical excipients was developed for further determination of elemental impurity from classes 1(As, Cd, Hg, and Pb) and 2A (Co, Ni, and V) according to ICH Q3D. The ...