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Type: Artigo de periódico
Title: O modelamento estatístico de misturas: experimento tutorial usando voltametria de redissolução anódica
Title Alternative: Statistical modeling of mixtures: a tutorial experiment using anodic stripping voltammetry
Author: Coscione, Aline Renée
Andrade, João Carlos de
May, Gyda Marie
Abstract: 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.
Subject: experimental design of mixtures
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422005000600029
Date Issue: 1-Dec-2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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