Table 3.

Concentrations of select analytes with and without β-glucuronidase/sulfatase (Helix Pomatia, type H-1) treatment

Sample	Mean concentration ± standard deviation (ng mL−1)a
	BCEtP		BCPP		BDCPP		DBuP		DPhP
	Without enzyme	With enzyme	Without enzyme	With enzyme	Without enzyme	With enzyme	Without enzyme	With enzyme	Without enzyme	With enzyme
1	2.37 ± 0.02	2.40 ± 0.01	0.54 ± 0.03	0.49 ± 0.03	5.69 ± 0.18	5.85 ± 0.23	1.04 ± 0.03	1.11 ± 0.07	16.5 ± 0.15	20.5 ± 0.21
2	0.83 ± 0.01	0.94 ± 0.05	0.23 ± 0.02	0.28 ± 0.02	4.26 ± 0.04	4.50 ± 0.17	0.68 ± 0.06	0.95 ± 0.03	9.10 ± 0.25	10.4 ± 0.34
3	7.47 ± 0.14	7.80 ± 0.02	0.24 ± 0.02	0.21 ± 0.01	1.45 ± 0.14	1.75 ± 0.54	0.29 ± 0.02	0.49 ± 0.04	6.79 ± 0.20	7.86 ± 0.15
4	0.73 ± 0.01	0.74 ± 0	2.20 ± 0.02	2.24 ± 0.04	3.61 ± 0.01	3.68 ± 0.09	0.23 ± 0.02	0.29 ± 0.02	4.64 ± 0.05	4.90 ± 0.18
5	1.20 ± 0.01	1.28 ± 0.01	1.98 ± 0.03	1.96 ± 0.08	0.85 ± 0.03	0.91 ± 0.02	**	**	1.32 ± 0.03	1.49 ± 0.05
6	4.67 ± 0.10	4.81 ± 0.10	0.07 ± 0 *	0.07 ± 0 *	2.73 ± 0.15	2.76 ± 0.14	1.76 ± 0.04	1.98 ± 0.01	19.4 ± 0.17	21.3 ± 0.15
7	1.93 ± 0.02	1.95 ± 0.02	0.46 ± 0.02	0.44 ± 0.04	6.89 ± 0.46	7.50 ± 0.20	1.09 ± 0.05	1.33 ± 0.04	18.3 ± 0.46	22.4 ± 0.40
8	1.79 ± 0.03	1.84 ± 0.03	1.99 ± 0.01	1.98 ± 0.04	4.01 ± 0.08	3.97 ± 0.19	0.34 ± 0.02	0.39 ± 0.02	7.33 ± 0.27	8.22 ± 0.22
9	1.10 ± 0.01	1.18 ± 0.03	0.17 ± 0.01	0.22 ± 0.01	20.3 ± 0.06	20.8 ± 0.32	0.40 ± 0	0.45 ± 0.02	8.68 ± 0.12	10.7 ± 0.35
10	1.48 ± 0.03	1.51 ± 0.06	0.38 ± 0.06	0.33 ± 0.04	7.29 ± 0.11	7.48 ± 0.20	0.88 ± 0.07	1.02 ± 0.04	13.7 ± 0.38	16.4 ± 0.15
11	1.30 ± 0.05	1.31 ± 0.01	0.07 ± 0 *	0.13 ± 0	2.77 ± 0.02	2.84 ± 0.03	0.38 ± 0.01	0.45 ± 0.01	7.43 ± 0.57	8.07 ± 0.06
12	4.04 ± 0.14	4.45 ± 0.07	1.34 ± 0.08	1.36 ± 0.04	**	**	0.54 ± 0.02	0.55 ± 0.01	11.1 ± 0	11.7 ± 0.23
13	1.21 ± 0.05	1.25 ± 0.04	0.85 ± 0.03	0.91 ± 0.01	6.65 ± 0.06	7.00 ± 0.25	0.16 ± 0.01	0.20 ± 0.01	3.21 ± 0.04	3.31 ± 0.03
14	0.99 ± 0.01	0.99 ± 0.02	0.66 ± 0.04	0.71 ± 0.03	5.73 ± 0.08	5.88 ± 0.17	0.39 ± 0.03	0.58 ± 0	6.54 ± 0.37	6.83 ± 0.12

^*Concentrations below limit of detection (LOD) were replaced with LOD/√2;

^**unable to quantify chromatographic interference

^aCalculated from three replicate measurements