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. 2011 Mar 16;11(3):3214–3226. doi: 10.3390/s110303214

Figure 4.

Figure 4.

Modeling performance achieved for the optimized ANN with samples from the training test (A,B) and the external test set: (C,D): on the left, perchlorate ion; on the right, sulfide ion. The dashed line corresponds to ideality, and the solid line is the regression of the comparison data. Uncertainty intervals calculated at the 95% confidence level.