Table 2.
Method performances for tetrodotoxin (TTX).
| Shellfish | Method Characteristic | TTX Concentration (µg/kg) | |||
|---|---|---|---|---|---|
| 15.0 | 20.0 | 44.0 | 100.0 | ||
| Mussels | Recovery (%) | 101 | 98 | 97 | 93 |
| Repeatability (CVr, %) | 6.7 | 9.1 | 9.0 | 5.8 | |
| Intermediate precision (CVIP, %) | 8.3 | 9.1 | 9.0 | 7.2 | |
| Oysters | Recovery (%) | 111 | 101 | 101 | 99 |
| Repeatability (CVr, %) | 10.2 | 7.2 | 7.3 | 3.6 | |
| Intermediate precision (CVIP, %) | 10.2 | 7.2 | 8.7 | 7.7 | |
| Whelks | Recovery (%) | 79 | 79 | 80 | 74 |
| Repeatability (CVr, %) | 19.8 | 10.7 | 6.6 | 10.9 | |
| Intermediate precision (CVIP, %) | 19.8 | 15.1 | 13.9 | 12.2 | |