Table 2.
Precision results of the proposed methodology
| Tissue | Analyte | Repeatability, % RSD (n = 6) | Intermediate precision, % RSD (n = 6) | ||
|---|---|---|---|---|---|
| 25 ng g−1 | 5 ng g−1 | 25 ng g−1 | 5 ng g−1 | ||
| Brain | ENNB | 1.2 | 9.2 | 8.6 | 9.8 |
| BEA | 1.5 | 6.4 | 4.8 | 7.0 | |
| ENNB1 | 1.9 | 4.5 | 4.0 | 4.3 | |
| ENNA1 | 0.3 | 5.7 | 3.8 | 5.6 | |
| ENNA | 1.7 | 2.0 | 6.5 | 6.4 | |
| Liver | ENNB | 1.6 | 8.6 | 7.7 | 9.0 |
| BEA | 8.5 | 8.4 | 1.0 | 1.3 | |
| ENNB1 | 2.6 | 3.8 | 4.5 | 4.6 | |
| ENNA1 | 1.1 | 7.2 | 3.3 | 9.2 | |
| ENNA | 2.7 | 5.2 | 3.0 | 4.3 | |
| Lung | ENNB | 3.6 | 7.1 | 8.2 | 9.3 |
| BEA | 5.8 | 6.4 | 7.1 | 8.7 | |
| ENNB1 | 4.3 | 6.1 | 5.8 | 7.3 | |
| ENNA1 | 5.6 | 2.9 | 6.0 | 7.7 | |
| ENNA | 2.9 | 5.6 | 5.7 | 6.5 | |
| Kidney | ENNB | 1.9 | 5.4 | 8.3 | 7.9 |
| BEA | 4.9 | 5.5 | 6.3 | 7.4 | |
| ENNB1 | 7.5 | 6.2 | 7.8 | 7.6 | |
| ENNA1 | 3.2 | 3.4 | 5.8 | 4.0 | |
| ENNA | 1.8 | 1.2 | 1.9 | 7.5 | |
| Heart | ENNB | 4.8 | 6.0 | 8.0 | 9.7 |
| BEA | 3.2 | 4.3 | 3.3 | 3.0 | |
| ENNB1 | 3.5 | 6.7 | 1.9 | 9.8 | |
| ENNA1 | 5.1 | 6.5 | 4.0 | 8.0 | |
| ENNA | 1.9 | 5.3 | 6.3 | 6.9 | |
| Fat | ENNB | 2.9 | 6.2 | 4.4 | 8.3 |
| BEA | 5.7 | 5.2 | 9.2 | 9.3 | |
| ENNB1 | 2.7 | 5.1 | 1.8 | 4.1 | |
| ENNA1 | 3.7 | 5.2 | 4.5 | 4.9 | |
| ENNA | 3.8 | 1.5 | 4.9 | 9.7 | |
RSD, relative standard deviation