Table 2. Precision of vitamin K analysis using enzymatic extraction coupled with HPLC-FLD
| Analytes | Repeatability1) (μg/100 g) | Reproducibility2) (μg/100 g) |
| Mean±SD3) | RSDr4) (%) | Mean±SD | RSDR5) (%) |
| Phylloquinone | 42.43±1.09 | 2.6 | 41.68±1.85 | 4.4 |
| Menaquinone | 2.42±0.04 | 1.7 | 2.28±0.16 | 6.9 |
Repeatability refers ro the results of independent 5 determinations in triplicates obtained by analyzing a sample five times on the same day.
Reproducibility refers to the results of independent 5 determinations in triplicates obtained by analyzing a sample five times on different days.
Standard deviation.
RSDr, relative standard deviation for repeatability.
RSDR, relative standard deviation for reproducibility.