Table 4.
Precision and recovery for representative samples
| Precision | Parameters | vitamin A | Thiamine | Riboflavin | Niacin | Vitamin C | Folate |
| μg/100g | Recovery4) | mg/100g | Recovery | mg/100g | Recovery | mg/100g | Recovery | mg/100g | Recovery | mg/100g | Recovery |
| Repeatability | Mean1) | 195.0 | 94.0 | 0.5 | 96.6 | 0.8 | 108.0 | 7.9 | 92.4 | 63.6 | 97.8 | 114.0 | 109.3 |
| SD2) | 9.2 | 1.4 | 0.0 | 1.9 | 0.0 | 1.4 | 0.2 | 1.0 | 3.5 | 1.7 | 3.1 | 1.0 |
| CV3) | 4.7 | 1.5 | 5.1 | 1.8 | 4.8 | 1.3 | 2.8 | 1.0 | 5.4 | 1.8 | 2.7 | 0.9 |
| Reproducibility | Mean | 186.0 | 96.6 | 0.5 | 97.0 | 0.8 | 105.1 | 7.8 | 95.5 | 66.7 | 96.4 | 115.5 | 102.8 |
| SD | 9.0 | 4.8 | 0.0 | 4.1 | 0.0 | 5.3 | 0.3 | 7.0 | 3.0 | 3.2 | 17.5 | 7.8 |
| CV | 4.9 | 5.0 | 4.4 | 4.3 | 4.0 | 5.0 | 4.1 | 7.3 | 5.8 | 3.7 | 15.1 | 7.6 |
Mean, n=5 (μg/100g);
standard deviation;
CV, coefficient of variation (%);
The accuracy was evaluated by analyzing a spiked sample.