AOAC RI Chemical Cont. Methods-2018 Awards

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

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

No. of laboratories

No. of replicates

Mean concn, µg/kg

Mean recovery,

PAH

, µg/kg s R

, µg/kg RSD r

, % RSD R

, % HorRat

% s r

1,7-DMP

8 8 8 8 9 9 7 8 8 7 7 7 9 9 9 7 7 6 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 8 9 9 9 9 9 9 9 9 9

16 16 16 16 18 18 14 16 16 14 14 14 18 18 18 14 14 12 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 16 18 18 18 18 18 18 18 18 18

72.3 69.0 65.6 67.9 90.8

90.4 86.2 82.0 90.5 90.8 94.6 80.8 79.8 77.3 76.2 77.2 71.7 92.5 88.6 87.5 53.2 50.3 56.6 72.6 68.6 71.6 49.7 48.2 49.3 85.9 81.8 82.8 82.4 81.9 78.4 85.9 84.3 83.8 85.9 81.6 81.6 82.7 82.2 80.0 83.3 81.2 76.0 88.2 83.9 80.5 86.8 83.3

4.1 4.9 5.5 4.3

11.7 12.6 13.2 14.8 28.9 55.3

5.7 7.1 8.4 6.4

16.2 18.3 20.1 21.8 31.9 23.4 23.9 19.3 22.4 17.5 18.6 13.0 13.0 13.0 12.0 55.0 64.7 44.5 19.7 21.1 17.5 43.5 42.2 40.5 11.6 11.2 11.9 12.3 13.6 11.7 16.3 15.4 13.1 13.0 13.4 12.7 15.4 14.6 19.9 16.2 17.9 14.2 13.1 13.7 9.9 10.6 9.3

0.68 0.76 0.83 0.91 1.39 1.18 0.83 0.74 1.06 0.65 0.76 0.62 0.47 0.55 0.59 1.56 1.94 1.67 0.62 0.71 0.73 1.10 1.18 1.45 0.35 0.40 0.51 0.34 0.41 0.41 0.48 0.52 0.54 0.39 0.45 0.46 0.35 0.41 0.43 0.50 0.51 0.81 0.57 0.69 0.65 0.36 0.42

1-MN

20.6 26.4

22.7 11.2

236.6

1-MP

20.2 39.9

1.8 2.6

4.8 7.7

8.8 6.4

154.7

16.9

34.7

10.9

2,6-DMN

30.5 57.9

3.0 4.9

5.3

9.8 8.5 7.9 6.0 6.4 5.1 8.8 8.8 7.7 5.8 5.4 9.0 6.4 6.6 7.1 4.1 5.9 8.6 4.9 7.7 6.5 6.1 6.5 6.2 4.3 9.0 7.5 4.4 8.2 6.8 4.0 9.5

10.8 20.9

161.3

12.7

3-MC

27.8 79.8

1.7 5.1

3.6

10.3 23.5

196.8

10.1

Ant

5.3 7.5

0.5 0.8 3.0 0.8 1.0 3.9 0.3 0.4 1.6 0.6 1.7 3.4 0.2 0.7 1.0 0.5 1.1 3.8 2.8 5.0 8.7 0.4 0.6 0.7 1.0 1.4 2.3 2.1 5.1 7.0 0.4 0.8

2.9 4.9

10.0

34.0 10.9 17.2 71.6

15.1

BaA

2.2 3.6

12.5

BaP

2.5 4.8

1.1 2.0

11.9

24.6

10.0

BbF

8.6

1.0 2.7 9.8 0.5 1.1 2.3 1.1 2.6 8.2 4.3 8.6 0.5 1.1 2.0 1.9 3.0

24.6 82.8

BghiP

4.1 8.2

19.6

BkF

6.9

16.9 62.9 43.0 81.6

Chr

204.1

19.0

DBahA

4.1 8.2

16.0 12.5 20.3 57.0 22.0 42.0

Fln

11.3

Flt

3.6 7.5

12.2

120.7

17.1

5.8 9.6 9.0

IcdP

4.3 8.3

0.6 1.1