| Mean amount found* (ng/ml) |
| Amount added (ng/ml) |
Multi-dimensional method |
Conventional method |
| 20 |
17.80 ± 0.80 |
18.54 ± 0.85 |
| 50 |
46.95 ± 1.52 |
46.70 ± 1.29 |
| 70 |
66.39 ± 2.95 |
65.69 ± 3.14 |
| 100 |
96.82 ± 4.30 |
95.85 ± 3.27 |
*The assay recovery was determined at four different concentrations, five samples
from each concentration (n=5). A minimum recovery of 95% was used as criteria |
