Landfills and waste water treatment plants as sources of ... - GKSS

METHOD OPTIMISATION
Table 14: Recovery rates (R, %) of PBDEs and musk fragrances obtained from extraction of
GFF using FBE and ASE (n=3); SD abs.: absolute standard deviation, RSD: relative standard
deviation, Min: minimum, Max: maximum.
AHTN D13 MX D15 MBDE28 MBDE47 MBDE99 MBDE153 MBDE183
R (FBE1) 61 45 112 88 102 93 51
R (FBE2) 61 49 106 110 106 111 83
R (FBE3) 56 46 91 120 107 126 60
R (Average) 60 47 103 106 105 110 65
SD abs. 3 2 11 16 3 17 16
R (RSD) 5 4 11 16 3 15 25
R (Min) 56 45 91 88 102 93 51
R (Max) 61 49 112 120 107 126 83
R (ASE1) 63 85 94 94 85 92 107
R (ASE2) 77 90 99 92 88 84 109
R (ASE3) 67 85 89 95 82 87 104
R (Average) 69 87 94 94 85 88 107
SD abs. 7 3 5 1 3 4 3
R (RSD) 10 4 6 1 3 5 3
R (Min) 63 85 89 92 82 84 104
R (Max) 77 90 99 95 88 92 109
3.3.6 Clean-up of PBDEs from particle-phase samples
Almost all PBDE congeners were detected in fraction 1. Only 2-3 % MBDE183 were
observed in fraction 2. Average recovery rates of the purification step were 92 % (MBDE28),
86 % (MBDE47), 85 % (MBDE99), 99 % (MBDE153), 115 % (MBDE183), 91 %
(MBDE209). Detailed results are given in figure 4.
Figure 4: Recovery rates (%) of mass-labelled musk fragrances and PBDEs determined after
clean-up step described in section 3.2.7.
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