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Table 1

Analytical calibration data and linearity

Compound	^at_r (min)	^bLR (μg L⁻¹)	Slope	Intercept	^cR²	^dF_exp	^eEF
Nap	3.11	0.150–200	0.1827	0.3083	0.9991	4.21	238
Acy	4.21	0.15–200	0.2944	0.1185	0.9928	2.83	214
Ace	4.76	0.15–200	0.1471	0.2304	0.9981	1.97	205
Flu	4.98	0.10–150	0.2634	0.2171	0.9952	3.05	371
Phe	5.49	0.150–200	0.3182	0.0711	0.9943	2.11	169
Ant	6.18	0.20–200	0.5462	−0.0835	0.9918	4.02	110
Flt	6.81	0.50–250	0.1607	0.0091	0.9991	2.61	268
Pyr	7.43	0.15–200	0.0831	0.1426	0.9985	2.08	137
BaA	7.96	0.10–150	0.1295	−0.0127	0.9976	1.86	114
Chr	9.35	0.150–200	0.1938	−0.0318	0.9953	2.47	186
BbF	9.82	0.10–150	0.2967	0.0629	0.9994	3.15	162
BkF	11.24	0.10–150	0.1356	0.0094	0.9927	2.26	171
BaP	11.81	0.10–150	0.1182	0.0341	0.9980	2.02	155
DBA	12.57	0.10–150	0.0774	−0.1033	0.9995	1.88	94
BgP	13.74	0.10–150	0.1121	0.0614	0.9991	2.43	192
Ind	14.48	0.10–150	0.1507	0.0826	0.9959	3.50	128

Compound	^at_r (min)	^bLR (μg L⁻¹)	Slope	Intercept	^cR²	^dF_exp	^eEF
Nap	3.11	0.150–200	0.1827	0.3083	0.9991	4.21	238
Acy	4.21	0.15–200	0.2944	0.1185	0.9928	2.83	214
Ace	4.76	0.15–200	0.1471	0.2304	0.9981	1.97	205
Flu	4.98	0.10–150	0.2634	0.2171	0.9952	3.05	371
Phe	5.49	0.150–200	0.3182	0.0711	0.9943	2.11	169
Ant	6.18	0.20–200	0.5462	−0.0835	0.9918	4.02	110
Flt	6.81	0.50–250	0.1607	0.0091	0.9991	2.61	268
Pyr	7.43	0.15–200	0.0831	0.1426	0.9985	2.08	137
BaA	7.96	0.10–150	0.1295	−0.0127	0.9976	1.86	114
Chr	9.35	0.150–200	0.1938	−0.0318	0.9953	2.47	186
BbF	9.82	0.10–150	0.2967	0.0629	0.9994	3.15	162
BkF	11.24	0.10–150	0.1356	0.0094	0.9927	2.26	171
BaP	11.81	0.10–150	0.1182	0.0341	0.9980	2.02	155
DBA	12.57	0.10–150	0.0774	−0.1033	0.9995	1.88	94
BgP	13.74	0.10–150	0.1121	0.0614	0.9991	2.43	192
Ind	14.48	0.10–150	0.1507	0.0826	0.9959	3.50	128

^at_r is retention time. ^bLR is linear range. ^cR² is the determination coefficient. ^dF_exp is the ratio of residual variance to squared pure error, critical F_{(0.05, 42, 30)} = 1. 79 is the critical value of F with (I − 3) = 42 and (I − L) = 30 degrees of freedom at 95% confidence level, where I is the number of calibration samples (45) and L the number of concentration levels (15). ^eEF is enrichment factor.

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