Table 3.
Accuracy and precision of the LCMS quantitative analysis of glucosamine, ±hesperetin, trans-resveratrol and ±naringenin (n = 3).
| Analyte | Nominal Value (μg/mL) | Measured Value (μg/mL) (Mean ± SEM) | CV (%) | Bias (%) |
|---|---|---|---|---|
| Glucosamine | ||||
| Low | 0.075 | 0.063 ± 0.000 | 2.93 | −16.4 |
| Medium | 1.5 | 1.46 ± 0.102 | 12.2 | −2.91 |
| High | 15 | 14.6 ± 0.989 | 11.7 | −2.45 |
| ±Hesperetin | ||||
| Low | 0.075 | 0.087 ± 0.000 | 0.662 | 14.2 |
| Medium | 1.5 | 1.44 ± 0.062 | 7.40 | −3.64 |
| High | 15 | 13.7 ± 0.155 | 1.97 | −9.87 |
| trans-Resveratrol | ||||
| Low Medium High ±Naringenin Low Medium High |
0.075 1.5 15 0.075 1.5 15 |
0.088 ± 0.000 1.47 ± 0.063 14.6 ± 0.219 0.083 ± 0.004 1.55 ± 0.102 14.3 ± 0.219 |
0.267 7.49 2.57 7.98 11.4 2.78 |
17.7 −2.87 −1.50 10.1 3.30 −2.28 |