As for the concentration samples, a TPr of 99.4 and 99.2% were found for the 10 and 100 µg/L samples, respectively. For these samples there was a large deviation between the FDr and reduction rates, which were 74.5 and 9.7% for the 10 µg/L and 48.7% and 12.6% for the 100 µg/L samples (Figure ). From this, it seems that, even though the higher reduction rate was found for the lower concentration samples, the CNL model would perform better in terms of FDr for higher concentration samples. Moreover, since this sample set contains only 2 concentrations, the same evaluation was made for the matrix dataset, since the matrix itself did not influence the performance and this set contains more sample concentrations.