Table 2 Recovery rates of total selenium in the certified reference materials
From: Rapid methods to detect organic mercury and total selenium in biological samples
Standard Reference Materials (SRM) | Total selenium (μg/g)†| ||||
|---|---|---|---|---|---|
| Â | Â | Expected value | Observed value | N | Recovery (%) |
DOLT-3 | (Dogfish liver) | 7.06 ± 0.48 | 7.27 ± 1.09 | 35 | 103 ± 18 |
TORT-2 | (Lobster hepatopancreas) | 5.63 ± 0.67 | 5.58 ± 0.77 | 20 | 99.2 ± 15.7 |
NIST 1568a | (Rice flour) | 0.38 ± 0.04 | 0.39 ± 0.06 | 8 | 102 ± 16 |
NIST 1577b | (Bovine liver) | 0.73 ± 0.06 | 0.71 ± 0.08 | 8 | 97.3 ± 11.7 |
NIST 1515 | (Apple leaves) | 0.050 ± 0.009 | ND | 4 | - |
Selenite | (Standard stock solution) | 100 | 89.3 | 3 | 89.3 |
| Â | Â | 250 | 239 | 3 | 94.7 |
Selenite | (Standard stock solution) | 100 | 86.2 | 4 | 86.2 |
| Â | Â | 250 | 229 | 3 | 91.6 |