Utilização de regressão multivariada para avaliação espectrofotométrica da demanda química de oxigênio em amostras de relevância ambiental

Química Nova

Patricio Peralta-zamora²  Gilcélia A. Cordeiro²  Noemi Nagata¹ 

[1] ,Universidade Federal do Paraná Departamento de Química Curitiba PR

关键词: COD;    multivariate regression;    spectrophotometry;   

DOI  :  10.1590/S0100-40422005000500021

来源: SciELO

【 摘 要 】

In this work, a partial least squares regression routine was used to develop a multivariate calibration model to predict the chemical oxygen demand (COD) in substrates of environmental relevance (paper effluents and landfill leachates) from UV-Vis spectral data. The calibration models permit the fast determination of the COD with typical relative errors lower by 10% with respect to the conventional methodology.

【 授权许可】

CC BY-NC   
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