Elements | Certified values | MWD Mean ± SD | (%) Recovery | Paired t-testa tExperimental |
Certified sample of serum (μg/l) | ||||
Cd | 4.60 ± 1.2 | 4.56 ± 0.18 (3.95)b | 99.1 | 0.123 |
Zn | 2.225 ± 0.334 | 2.75 ± 0.16 (5.81) | 99.6 | 0.670 |
Certified sample of whole blood (μg/l) | ||||
Cd | 1.2 ± 0.4 | 1.189 ± 0.10 (8.41) | 99.1 | 0.00636 |
Zn* | 2.27 ± 0.06 | 2.19 ± 0.15 (6.61) | 96.5 | 0.260 |
Certified sample of human hair (μg/g) | ||||
Cd | 0.52 ± 0.024 | 0.515 ± 0.042 (8.15) | 99.04 | 0.145 |
Zn | 199 ± 5.0 | 197.8 ± 7.29 (3.68) | 99.4 | 0.678 |