Artículo
Fitting Nonlinear Calibration Curves: No Models Perfect
Autor/es | Martín Bueno, Julia
Romero Gracia, Alberto García Asuero, Agustín |
Departamento | Universidad de Sevilla. Departamento de Química Analítica |
Fecha de publicación | 2017 |
Fecha de depósito | 2017-12-21 |
Publicado en |
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Resumen | The study of the calibration of a series of compounds of environmental concern (six perfluoroalkyl compounds (perfluorooctane sulfonic acid and five perfluoroalkyl carboxylic acids), three preservatives (methyl-, ethyl- ... The study of the calibration of a series of compounds of environmental concern (six perfluoroalkyl compounds (perfluorooctane sulfonic acid and five perfluoroalkyl carboxylic acids), three preservatives (methyl-, ethyl- and propylparabens) and the brominated flame retardant hexabromocyclododecane) by LC-MS/MS has been carries out, with a view to their simultaneous determination in samples of environmental interest. In some cases nonlinear calibration curves are obtained, but restricting the concentration range a linear model may be used to fit the data. Residual analysis has been performed in order to verify which models fit the data better, opting for a compromise decision given the apparent complexity of residuals plots. As Box states there are no perfect models (but models that work better than others). |
Cita | Martín Bueno, J., Romero Gracia, A. y García Asuero, A. (2017). Fitting Nonlinear Calibration Curves: No Models Perfect. Journal of Analytical Sciences, Methods and Instrumentation, 7, 1-17. |
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JASMI_2017030314572648.pdf | 1.621Mb | [PDF] | Ver/ | |