Table 3.

Mean values of %R_ES and %R_SS of dl-PCBs (n = 7) for samples collected with the reference method (QFF + PUF, Set-up A) and the ACF (Set-up C). The PUF in the Set-up C was added as a backup filter

	Set-up A		Set-up C
	QFF + PUF		ACF		Backup PUF
	Mean	Min–max	Mean	Min–max	Mean	Min–max
%RES
81L	90	88–112	92	91–94	76	70–85
77L	90	84–114	100	75–104	72	64–82
123L	85	71–105	76	77–96	80	77–82
118L	76	67–95	70	72–91	79	77–82
114L	72	64–89	67	66–102	93	63–113
105L	69	67–82	73	67–76	79	72–83
126L	65	64–73	73	66–78	73	70–76
167L	108	79–116	88	68–121	85	71–88
156L	109	82–118	80	72–93	78	69–79
157L	103	91–116	82	78–103	90	68–96
169L	79	86–105	80	76–84	58	63–95
189L	92	87–94	88	79–94	83	71–86
%RSS
60L	134	69–137	103	79–121	16	< 1–23
127L	89	81–92	83	79–91	< 1	< 1–3
159L	53	51–54	54	51–56	< 1	< 1