| Standard (μg∙P∙L−1) | Corrected peak 1 (arbitrary units) | Corrected peak 2 (arbitrary units) | Corrected peak 3 (arbitrary units) | Mean | RSD (n = 3) (%) |
| 0 | 11 | 10 | 9 | 10 | 1.0 |
| 10 | 123 | 122 | 123 | 123 | 0.6 |
| 20 | 236 | 234 | 237 | 236 | 1.5 |
| 30 | 340 | 344 | 345 | 343 | 2.6 |
| 40 | 448 | 451 | 449 | 450 | 1.5 |
| 60 | 667 | 668 | 667 | 667 | 0.6 |
| 80 | 890 | 894 | 895 | 893 | 2.6 |