O modelamento estatístico de misturas: experimento tutorial usando voltametria de redissolução anódica
Data(s) |
01/12/2005
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Resumo |
This work illustrates the modeling procedure for a solvent mixture using the simplex- centroid approach. The selected experiment was the optimization of the peak current observed in the direct determination of nickel by anodic stripping voltammetry (ASV) in a solvent mixture composed of N,N-dimethylformamide, ethanol and water. The text is presented in a tutorial way, showing in detail the several steps which must be followed in such a process. Since not all possible mixtures lead to a measurable instrumental response, pseudocomponents had to be used to rescale the experimental design. This also allows to show how to apply this tool, usually troublesome for non-specialists in mixture modeling procedures. |
Formato |
text/html |
Identificador |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000600029 |
Idioma(s) |
pt |
Publicador |
Sociedade Brasileira de Química |
Fonte |
Química Nova v.28 n.6 2005 |
Palavras-Chave | #experimental design of mixtures #voltammetry #nickel |
Tipo |
journal article |