Determinação de enxofre em amostras vegetais por oxidação via seca em meio alcalino com detecção espectrofométrica

Autor:	Juliana Graciela Giovannini Oliveira, Alexssandra Luiza Rodrigues Molina Rossete, José Albertino Bendassolli, Josiane M. T. Carneiro, Hugo Henrique Batagello
Jazyk:	portugalština
Rok vydání:	2011
Předmět:	inorganic chemicals chemistry.chemical_element food and beverages General Chemistry sulfate turbidimetric method digestion Sulfur lcsh:Chemistry chemistry.chemical_compound Nutrient chemistry lcsh:QD1-999 Environmental chemistry Sulfate
Zdroj:	Química Nova v.34 n.2 2011 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ Química Nova, Vol 34, Iss 2, Pp 341-343 (2011)
Popis:	The sulphur take an essential role in plants and it is one of the main nutrients in several metabolic processes. The dry ash oxidation, using alkaline oxidizers agent, is the simplest and most economical form for the oxidation of Organic S to sulfate in plants. The objective of this work is to propose a method for sulfur determination in plants samples using dry ash oxidation and agent oxidizers alkaline. The quantification of S-SO4(2-) in samples was accomplished by turbidimetric method. The results demonstrated that the proposed method for oxidation alkaline was appropriate.
Databáze:	OpenAIRE
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