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Fig. 4 | Journal of Analytical Science and Technology

Fig. 4

From: Low-cost, disposable colourimetric sensors for metal ions detection

Fig. 4

Software output for the PLS regression model, based on 6 latent variables, for the Mg(II) determination by EBT-CC sensor. The different colours refer to two different experiments at low (red) and at high (green) metal ion concentration. (1) Comparison of the experimental points with the points recalculated from the model; (2) the same comparison but in conditions of cross-validation. This plot assesses the variability of the estimated parameters and its effect on the prediction

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