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Title: Maximum likelihood estimation with nonlinear regression in polarographic and potentiometric studies
Authors: Pereira, J. L. G. C. 
Pais, A. A. C. C. 
Redinha, J. S. 
Keywords: Maximum likelihood; Nonlinear regression; Polarographic studies
Issue Date: 2001
Citation: Analytica Chimica Acta. 433:1 (2001) 135-143
Abstract: In this work we review some aspects of maximum likelihood nonlinear modeling in polarographic and potentiometric techniques. Different algorithms, namely the Levenberg-Marquardt and the "error-in-variables" methods in parametric and Monte-Carlo nonparametric estimation are used. Conclusions are drawn upon the influence of experimental errors and error correlation, introduced via statistical weighting, in the accuracy and precision of the estimated parameters. Several of the tested alternatives, including regression on the signal variable alone with a global error weighting function, are shown to provide adequate representation of the experimental data.
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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