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Preparo e caracterização de material de referência de solo para nutrientes e contaminantes inorgânicos
(Universidade Federal de São Carlos, 2014-09-26)
The certified reference materials make an important role in the establishment of traceability in analytical chemistry, ensuring reliability and accuracy to the measurements and are fundamental for the validation of analytical ...
Avaliação de parâmetros e produção de materiais de referência de suplemento mineral para nutrientes e contaminantes inorgânicos
(Universidade Federal de São Carlos, 2011-09-09)
This paper was prepared a material candidate for reference material for mineral mixture for dairy cattle. Shape certain analytes Ca, K, Na, P, Cu, Fe, Mn, Mg, Zn and contaminants As, Cd and Pb The material was crushed, ...
Produção e caracterização de material de referência de forrageira para nutrientes e contaminantes inorgânicos
(Universidade Federal de São Carlos, 2013-04-12)
The main aim of this work was to produce a candidate material for national reference material, the forage Brachiaria brizantha Stapf. cv. Marandu, containing known levels of contaminants (Cr, Pb, Cd, and As) and macro and ...