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Determinação de compostos sulfurados em amostras de asfalto de petróleo empregando cromatografia líquida de alta eficiência com detecção por arranjo de fotodiodos
(Universidade Federal de Santa Maria, 2019-03-21)
The presence of organosulfur compounds in petroleum-derived asphalts is related to
several negative characteristics, such as catalyst poisoning and corrosion of
equipment during the refining process, as well the acceleration ...
Determinação de micotoxinas por UPLC-MS/MS em grãos armazenados sob condições de temperatura e atmosfera controlada
(Universidade Federal de Santa Maria, 2019-02-28)
This work aimed to develop and validate analytical methods for the determination of mycotoxins in beans, corn and soybean using UPLC-MS/MS and to evaluate the occurrence of mycotoxins in samples of these grains after six ...
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 ...