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484  M astovska et al . : J ournal of AOAC I nternational V ol . 98, N o . 2, 2015

Table 2014.08C. Statistical results for the studied PAHs at three different concentration levels in mussel after elimination of statistical outliers

No. of laboratories

No. of replicates

Mean concn, µg/kg

Mean recovery, % s r

PAH

, µg/kg s R

, µg/kg RSD r

, % RSD R

, % HorRat

1,7-DMP

10

20 18 20 20 20 16 18 18 18 20 16 20 20 20 20 20 18 18 20 20 16 18 18 18 20 20 20 18 20 20 18 20 20 20 20 20 20 20 20 20 20 18 18 20 18 20 20

38.1 39.4 38.9 19.3 96.9

95.3 98.6 97.3 96.5 96.9 98.1 91.6 93.7 91.9 87.2 87.9 98.6 96.8 95.2 77.9 86.8 78.8 85.1 85.9 87.7 79.2 80.5 77.3 94.4 90.2 92.1 98.1 92.7 89.6 97.4 92.7 91.5 94.4 91.6 91.3 93.1 90.5 90.8

5.7 4.6 4.6 3.1 9.0

8.8 8.3 8.9 4.5

14.9 11.7 11.9 16.2

23.2 21.1 22.8 23.2 19.8 12.7 18.0 21.0 20.8 20.7 20.7 23.9 16.7 12.5 12.1 32.5 24.8 25.0 15.9 10.9 20.5 17.7 13.4 10.6 10.2 4.2

0.89 0.81 0.87 0.80 0.87 0.63 0.56 0.82 0.94 0.68 0.86 1.13 0.52 0.54 0.56 0.88 0.81 0.93 0.44 0.38 0.17 0.49 0.54 0.46 0.30 0.37 0.35 0.26 0.37 0.29 0.25 0.44 0.40 0.31 0.41 0.35 0.27 0.41 0.28 0.30 0.27 0.20 0.41 0.35 0.31 0.28 0.37

9

10 10 10

1-MN

19.2 26.6

9.2

8 9 9 9

208.7

104.4

26.6

12.7

1-MP

9.8

0.7 5.3

1.8 9.6

7.2

45.8

11.6

117.2

10.2

24.4

8.7

2,6-DMN

10

13.8 65.4

1.5 3.1

2.9

11.2

8

13.6 36.8

4.8 6.9 7.6 4.7 2.8 6.7 4.6 6.9 5.1 2.5 5.6 6.9 3.0 7.2 6.9 3.0 4.9 4.4 3.2 7.2 6.2 2.7 5.7 4.5 3.1 9.1 5.4 4.0 3.5 3.7 3.5 5.5 5.3 7.3 5.6

10 10 10 10 10

153.8

10.7

3-MC

9.9

0.7 4.1 3.8 0.3 1.7 1.4 0.3 1.1 1.3 0.1 0.6 0.6 0.3 1.9 2.1 0.1 0.4 0.6 0.1 1.1 1.0 0.8 4.1 4.9 0.2 0.5 0.5 0.2 1.0 1.7 1.1 2.7 4.9 0.1 0.5

1.7

87.2

10.9 16.7

138.0

Ant

3.9

1.3 3.2 7.9 0.7 2.3 2.2 0.3 1.4 2.6 0.5 2.8 5.8 0.2 1.1 1.5 0.2 2.4 3.8 1.3 8.6 0.2 1.2 1.2 0.6 1.9 2.4 1.4 4.3 6.6 0.2 1.1

9 9

13.0 31.5

12.8

BaA

10 10

4.3

21.5 52.6

8 9 9 9

BaP

1.6 8.1

19.3

BbF

10 10 10

4.7

27.1 69.1

8.4

BghiP

9

2.0 9.3

10.6 12.1

10 10

17.9

8.6

BkF

9

1.9

10.3 12.8 10.4

10 10 10 10 10 10 10 10 10 10

18.5 36.6 14.2 91.6

Chr

9.5 9.4 7.4

159.8

11.8

DBahA

1.9 9.1

11.2 13.5

13.6

8.5

Fln

5.4

107.7 101.8

10.6

25.5 48.1 10.2 48.9 93.3

7.6 4.9

9 9

96.2

10.7

13.2

Flt

102.4

10

97.7 93.3 97.7 93.7

8.8 7.1

9

IcdP

10 10

2.0 9.4

11.3 11.9