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Desenvolvimento de procedimentos para a determinação de enxofre em diesel, biodiesel e óleo lubrificante usando ICP OES e ICP-MS
(Universidade Federal de São Carlos, 2014-02-19)
Since 1990 concerns about environmental and public health have stimulated the restrictions of maximum sulfur content in fuels allowed by legislation, especially in diesel and biodiesel, by several governmental agencies. ...
Teores dos elementos químicos essenciais e tóxicos na rastreabilidade da carne bovina
(Universidade Federal de São Carlos, 2012-02-15)
The objective of this work was to develop methodologies for the determination of inorganic constituents in meat sample and the study of correlations between samples with chemical elements profile, especially Nelore samples ...
Desenvolvimento de métodos para fracionamento de proteínas e metaloproteínas em carne bovina
(Universidade Federal de São Carlos, 2011-09-30)
This thesis aimed the fractionation of metalloproteins in beef samples. To this purpose initially it was proposed a method for extraction of proteins using the sample extractor in buffered alkaline medium and surfactant ...
Desenvolvimento de procedimentos para análise inorgânica de biodiesel usando técnicas espectroanalíticas
(Universidade Federal de São Carlos, 2010-08-25)
In this work, analytical procedures are proposed for the determination of major and trace elements in biodiesel samples employing flame atomic absorption spectrometry (F AAS), inductively coupled plasma optical emission ...