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

STUDY 1: LANDFILLS AS SOURCES
solutions were only used at room temperature. Seven point calibrations (GC-MS: 2, 4, 10, 20,
50, 100, 200 pg μL -1 ; HPLC-MS/MS: 1, 5, 10, 25, 50, 100, 500 pg μL -1 ) were used to
quantify target analytes. Linearity was tested according to DIN 32645 (1994). Mass-labelled
standards were used to correct for analyte losses during analysis and measurements.
Average recovery rates for PFCs, PBDEs and musk fragrances spiked to the PUF/XAD-
2/PUF cartridges prior to sampling are presented in table 16. Table 17 displays recovery rates
of particle-phase samples. A list of individual recovery rates can be obtained from the
supporting information.
Table 16: Average recovery rates (R, %) standard deviations (SD), relative standard deviations
(RSD), median, minima (Min), and maxima (Max) values for semi-volatile PFCs, PBDEs and
musk fragrances from gas-phase samples taken at landfills and reference sites. If not marked
separately mean recoveries are referred to n=20.
R (Average) SD abs. RSD R(Median) R(Min) R(Max)
13 C 4:2 FTOH 10 7 1 9 2 30
13 C 6:2 FTOH a 43 10 4 45 24 57
13 C 8:2 FTOH 47 14 6 45 27 78
13 C 10:2 FTOH 55 12 7 51 34 78
EtFOSA D5 44 13 6 43 23 75
MeFOSA D3 41 11 5 40 17 66
MeFOSE D7 57 11 6 60 35 76
EtFOSE D9 58 13 8 59 37 89
MBDE28 b 78 23 29 74 37 138
MBDE47 c 88 35 40 86 0 176
MBDE99 95 20 21 91 68 162
MBDE153 d 137 23 17 140 104 173
MBDE183 103 23 22 104 70 164
AHTN D3 92 14 15 96 43 109
MX D15 e 100 40 40 114 28 150
a n=11, b n=17, c n=17, d n=18, e n=18; note: Differences are due to matrix problems.
49