Multiple PAHs’ Detection under CDOM Interference Based on Excitation-Emission Matrix and Interval Selection

Table 2

Prediction values of single-excitation interval PLS in the test samples (μg/L).

FLU	Actual concentration	3.0	7.5	12.5	17.5	15.0	MRE (%)
	Prediction concentration (Mix-PAH)	3.90	7.35	12.88	17.77	14.86	2.05
	Prediction concentration (HA-PAH)	3.31	7.36	12.19	18.31	15.84	4.30
PYR	Actual concentration	6.0	17.5	12.5	2.5	15.0
	Prediction concentration (Mix-PAH)	6.41	16.31	13.24	2.07	15.13	4.87
	Prediction concentration (HA-PAH)	4.98	16.95	12.90	2.52	14.18	4.54
PHE	Actual concentration	9.0	16.0	5.0	12.5	20.0
	Prediction concentration (Mix-PAH)	8.43	13.75	6.59	12.78	19.46	6.90
	Prediction concentration (HA-PAH)	7.37	15.37	5.18	11.47	17.97	7.39
BaP	Actual concentration	12.0	9.0	3.0	6.0	16.0
	Prediction concentration (Mix-PAH)	12.51	9.44	3.57	6.04	15.70	3.20
	Prediction concentration (HA-PAH)	12.47	9.52	3.70	6.13	15.72	3.36

MRE values are listed in the last column.