Table 3.
Intra-day precisions, inter-day precisions, matrix effects and recoveries of 10 nutritional compounds.
| Analytes | Intra-Day Precision (RSD %, n = 3) |
Inter-Day Precision (RSD %, n = 5) |
Recovery (%, n = 3) |
Matrix Effect (%, n = 3) |
|---|---|---|---|---|
| - | 50/200/500 μg/kg | 50/200/500 μg/kg | 50/200/500 μg/kg | 50/200/500 μg/kg |
| d-Homoproline | 3.6/1.9/4.6 | 6.7/3.9/4.1 | 117.7/114.5/118.3 | 8.2/9.4/11.2 |
| Vitamin B2 | 2.2/7.7/3.6 | 8.1/9.2/10.4 | 71.1/78.6/73.5 | −13.8/−9.2/−10.3 |
| l-Hyoscyamine | 1.9/3.2/4.4 | 5.6/3.3/8.2 | 80.9/89.1/104.8 | −6.4/−5.1/−3.8 |
| N-Acetyl-l-leucine | 5.8/8.7/9.6 | 6.3/7.1/8.4 | 100.8/109.1/90.2 | −4.5/−3.9/−8.1 |
| Hesperidin | 5.4/4.9/3.7 | 5.5/4.9/9.4 | 82.4/79.3/89.5 | −10.8/−7.4/−6.9 |
| Ferulic acid | 4.3/2.8/5.9 | 7.6/5.9/8.7 | 95.9/103.4/109.1 | 9.1/6.3/8.5 |
| Coniferyl aldehyde | 3.8/5.7/7.9 | 8.6/4.2/9.6 | 99.6/106.3/110.4 | 6.8/5.8/9.4 |
| Phloretin | 6.7/7.8/8.4 | 6.5/9.4/12.9 | 97.7/98.6/105.3 | −5.4/−4.6/−5.2 |
| 5-Methoxypsoralen | 3.9/5.8/7.4 | 8.8/5.9/6.3 | 107.5/110.8/115.1 | 8.6/9.0/10.6 |
| 8-Methoxypsoralen | 4.8/3.3/8.0 | 7.1/6.4/4.9 | 89.6/96.2/107.4 | 5.5/4.9/8.7 |