AOAC Final Action Methods in 2017

544 P ACQUETTE & T HOMPSON : J OURNAL OF AOAC I NTERNATIONAL V OL . 101, N O . 2, 2018

Parameter 1 a 2 b 3 c 4 d 5 e 6 f 7 g 8 h 9 i 10 j 11 k 12 l 13 m 14 n 15 o 16 p 17 q 18 r Overall mean of all data (grand mean) t 0.650 2.34 0.384 2.03 0.430 0.0465 1.21 0.720 1.18 0.0282 1.02 1.27 0.553 1.27 1.28 1.37 0.0173 0.826 S r 0.016 0.142 0.039 0.087 0.043 0.001 0.013 0.008 0.015 0.001 0.031 0.012 0.005 0.015 0.010 0.019 0.001 0.006 S R 0.022 0.168 0.059 0.112 0.053 0.004 0.032 0.046 0.061 0.002 0.055 0.035 0.031 0.054 0.070 0.046 0.004 0.045 RSD r 2.5 6.1 10.2 s 4.3 10.1 s 2.9 1.1 1.2 1.3 3.2 3.1 1.0 0.9 1.2 0.8 1.4 8.6 s 0.8 RSD R 3.5 7.2 15.3 s 5.5 12.3 s 7.6 2.7 6.4 5.2 7.6 5.4 2.8 5.5 4.3 5.4 3.4 26.0 s 5.4

Repeatability limit r (r = 2.8 × s r ) 0.046 0.397 0.109 0.244 0.121 0.004 0.037 0.024 0.042 0.0025 0.088 0.035 0.014 0.041 0.028 0.053 0.0042 0.018 Reproducibility limit R (R = 2.8 × s R ) 0.063 0.470 0.164 0.314 0.148 0.010 0.090 0.129 0.170 0.0060 0.154 0.099 0.086 0.153 0.195 0.130 0.013 0.125 HorRat value 0.29 0.72 1.17 0.54 0.96 0.42 0.24 0.54 0.47 0.39 0.48 0.25 0.45 0.39 0.50 0.31 1.25 0.46 Repeatability limit SMPR 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Reproducibility limit SMPR 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 Potassium u Year of interlab test 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 No. of labs submitting results 10 10 10 10 10 10 10 8 10 10 10 10 10 10 10 10 10 10 No. of outliers (individual replicates) 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 No. of accepted results 20 20 20 20 20 20 20 12 20 20 20 20 20 20 20 20 20 20 Overall mean of all data (grand mean) t 44.7 220 178 151 98.9 7.90 70.9 56.4 87.4 86.1 68.1 80.0 49.5 77.8 84.1 80.8 62.2 138.1 S r 0.53 3.1 3.3 1.8 1.9 0.13 0.5 1.2 1.0 1.3 1.1 1.2 0.89 1.3 1.0 0.87 0.75 1.5 S R 1.7 11.5 5.1 7.5 4.2 0.5 1.9 1.9 2.4 3.2 3.0 1.7 1.8 2.8 2.1 3.0 2.6 4.2 RSD r 1.2 1.4 1.9 1.2 2.0 1.6 0.7 2.1 1.2 1.5 1.7 1.5 1.8 1.7 1.2 1.1 1.2 1.1 RSD R 3.8 5.2 2.9 4.9 4.2 6.0 2.8 3.4 2.8 3.7 4.4 2.1 3.6 3.6 2.5 3.7 4.1 3.0 Repeatability limit r (r = 2.8 × s r ) 1.5 8.7 9.3 4.9 5.5 0.4 1.3 3.2 2.9 3.7 3.2 3.4 2.5 3.7 2.8 2.4 2.1 4.3 Reproducibility limit R (R = 2.8 × s R ) 4.8 32.1 14.2 20.9 11.6 1.3 5.5 5.4 6.8 8.8 8.4 4.7 5.0 7.8 5.8 8.3 7.2 11.6

HorRat value 0.60 1.04 0.55 0.93 0.74 0.72 0.46 0.56 0.48 0.63 0.74 0.36 0.58 0.61 0.42 0.63 0.68 0.58 Repeatability limit SMPR 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Reproducibility limit SMPR 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 Magnesium u Year of interlab test 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 2016 No. of labs submitting results 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 No. of outliers (individual replicates) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 No. of accepted results 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20

Overall mean of all data (grand mean) t 13.2 38.5 2.06 32.8 1.77 1.96 9.45 5.72 5.40 5.22 4.48 6.72 4.78 5.23 8.25 6.33 3.52 6.17 S r 0.23 0.82 0.058 0.33 0.021 0.036 0.11 0.067 0.087 0.084 0.070 0.083 0.071 0.12 0.089 0.067 0.042 0.065 S R 0.39 1.75 0.12 1.32 0.080 0.090 0.23 0.25 0.13 0.20 0.21 0.14 0.13 0.14 0.20 0.28 0.15 0.12 RSD r 1.8 2.1 2.8 1.0 1.2 1.8 1.2 1.2 1.6 1.6 1.6 1.2 1.5 2.2 1.1 1.1 1.2 1.1 Downloaded from https://academic.oup.com/jaoac/article-abstract/101/2/536/5653941 by guest on 05 May 2020

Sample

Table 3. ( continued )