AOACSPDSMethods-2017Awardsv2
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K line et al .: J ournal of AOAC I nternational V ol . 100, N o . 3, 2017 7
Table 5. Accuracy test for aloin A in aloe concentrate
Table 8. Accuracy test for aloin A in aloe powder
Expected amount of aloin A, ppb
Expected amount of aloin A, ppb
Aloin A found, ppb
Avg. recovery, %
Aloin A added, ng
Aloin A found, ppb
Avg. recovery, %
Spike level, ppb
Sample wt, g
Aloin A added, ng
Recovery, %
Spike level, ppb
Sample wt, g
Recovery, %
10
1.0066 11.07 11.00 9.17 83.4 82.9 1.0229 11.07 10.82 9.28 85.7 1.0294 11.07 10.75 8.57 79.7 1.0060 22.14 22.01 18.96 86.2 86.7 1.0205 22.14 21.70 19.02 87.7 1.0256 22.14 21.59 18.64 86.3 1.0164 33.21 32.67 29.13 89.2 88.1 1.0228 33.21 32.47 28.13 86.6 1.0014 33.21 33.16 29.31 88.4
10
0.5046 5.535 10.97 11.07 100.9 100.1 0.5087 5.535 10.88 9.74 89.5 0.5105 5.535 10.84 11.93 110.0 0.5194 11.07 21.31 18.88 88.6 85.1 0.5059 11.07 21.88 18.45 84.3 0.5059 11.07 21.88 18.04 82.4 0.5134 16.61 32.34 26.01 80.4 84.5 0.5106 16.61 32.52 26.90 82.7 0.5018 16.61 33.09 29.89 90.3
20
20
30
30
Table 6. Accuracy test for aloin B in aloe concentrate
Table 9. Accuracy test for aloin B in aloe powder
Expected amount of aloin B, ppb
Expected amount of aloin B, ppb
Aloin B added, ng
Aloin B added, ng
Aloin B found, ppb
Aloin B found, ppb
Avg. recovery, %
Avg. recovery, %
Spike level, ppb
Sample wt, g
Spike level, ppb
Sample wt, g
Recovery, %
Recovery, %
10
1.0066 10.23 10.16 8.31 81.8 87.1 1.0229 10.23 10.00 8.99 89.9 1.0294 10.23 9.94 8.90 89.6 1.0060 20.46 20.34 19.14 94.1 89.5 1.0205 20.46 20.05 18.19 90.7 1.0256 20.46 19.95 16.68 83.6 1.0164 30.69 30.19 25.15 83.3 86.1 1.0228 30.69 30.01 25.34 84.5 1.0014 30.69 30.65 27.71 90.4
10
0.5046 5.115 10.14 9.56 94.3 89.1 0.5087 5.115 10.06 9.06 90.1 0.5105 5.115 10.02 8.31 82.9 0.5194 10.23 19.70 15.86 80.5 85.5 0.5059 10.23 20.22 18.96 93.8 0.5059 10.23 20.22 16.60 82.1 0.5134 15.35 29.89 25.95 86.8 88.1 0.5106 15.35 30.05 26.34 87.6 0.5018 15.35 30.58 27.48 89.9
20
20
30
30
Table 7. Accuracy test for aloe-emodin in aloe concentrate
Table 10. Accuracy test for aloe-emodin in aloe powder
Expected amount of aloe- emodin, ppb
Aloe- emodin found, ppb
Expected amount of aloe- emodin, ppb
Spike level, ppb
Avg. recovery, %
Aloe- emodin added, ng
Aloe- emodin found, ppb
Sample wt, g
Aloe-emodin added, ng
Recovery, %
Avg. recovery, %
Spike level, ppb
Sample wt, g
Recovery, %
10
1.0066 11.14
11.07 11.05 99.8 99.1
10
0.5046 5.570 11.04 11.72 106.2 109.1 0.5087 5.570 10.95 12.14 110.9 0.5105 5.570 10.91 12.04 110.3 0.5194 11.14 21.45 20.08 93.6 95.6 0.5059 11.14 22.02 21.28 96.6 0.5059 11.14 22.02 21.29 96.7 0.5134 16.71 32.55 30.49 93.7 94.9 0.5106 16.71 32.73 31.02 94.8 0.5018 16.71 33.30 32.01 96.1
1.0229 11.14
10.89 10.57 97.1
1.0294 11.14
10.82 10.85 100.3
20
1.0060 22.28 22.15 21.25 95.9 95.0 1.0205 22.28 21.83 20.27 92.8 1.0256 22.28 21.72 20.94 96.4 1.0164 33.42 32.88 31.29 95.2 94.2 1.0228 33.42 32.68 30.38 93.0 1.0014 33.42 33.37 31.55 94.5
20
30
30
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