2009
DOI: 10.1590/s0100-40422009000500034
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Estado da arte de figuras de mérito em calibração multivariada

Abstract: Recebido em 25/6/08; aceito em 15/12/08; publicado na web em 28/5/09 STATE OF THE ART OF FIGURES OF MERIT IN MULTIVARIATE CALIBRATION. The validation of an analytical procedure must be certified through the determination of parameters known as figures of merit. For first order data, the acuracy, precision, robustness and bias is similar to the methods of univariate calibration. Linearity, sensitivity, signal to noise ratio, adjustment, selectivity and confidence intervals need different approaches, specific fo… Show more

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Cited by 75 publications
(52 citation statements)
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References 38 publications
(52 reference statements)
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“…After the construction of the model and from the projection in new independent variables it is possible to predict the values of new samples. 25 Ibáñez et al 26 applied chemometric tools, such as artificial neural networks (ANN) to determine three phenolpollutants simultaneously using three different epoxy-graphite composite electrodes, in which two of them were modified with metal catalysts (gold and palladium, respectively) and another without metals, forming an electrode array. The authors obtained success in the simultaneous determination; however, it was necessary to construct three electrodes with distinct compositions.…”
Section: Introductionmentioning
confidence: 99%
“…After the construction of the model and from the projection in new independent variables it is possible to predict the values of new samples. 25 Ibáñez et al 26 applied chemometric tools, such as artificial neural networks (ANN) to determine three phenolpollutants simultaneously using three different epoxy-graphite composite electrodes, in which two of them were modified with metal catalysts (gold and palladium, respectively) and another without metals, forming an electrode array. The authors obtained success in the simultaneous determination; however, it was necessary to construct three electrodes with distinct compositions.…”
Section: Introductionmentioning
confidence: 99%
“…The results were determined as the mean of the standard deviation, 12 these values are important to evaluate the partial least squares (PLS) models performance as stated by ASTM E 1655-05. 13 The NIR spectra for the soil samples were acquired using PerkinElmer equipment, equipped with diffuse reflectance accessory (NIRA).…”
mentioning
confidence: 99%
“…Quando se tem um espectro como resposta para cada amostra tem-se um dado de primeira ordem. Já no caso de se obter uma superfície de resposta para cada amostra têm-se dados de segunda ordem (espectros com o tempo) (VALDERRAMA, et al, 2009). …”
Section: Objetivos Específicosunclassified