Table 3.
Summary of the repeatability evaluation. Table shows values for within-batch repeatability (RSDr) and between-batch repeatability (RSDR) for each PST and TTX analogue at high, mid and low concentration in pool extracts of blue mussels. * Concentrations for TTXs are expressed in µg TTX/kg.
| Toxins | High-Level | Mid-Level | Low-Level | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Conc (µg STX eq/kg) * | %RSDr (n = 6) | %RSDR (n = 18) | Conc (µg STX eq/kg) * | %RSDr (n = 6) | %RSDR (n = 18) | Conc (µg STX eq/kg) * | %RSDr (n = 6) | %RSDR (n = 18) | ||
| dcSTX | 335.66 | 2 | 9 | 86.06 | 3 | 5 | 43.44 | 4 | 11 | |
| dcNEO | 84.31 | 3 | 8 | 21.98 | 6 | 7 | 11.93 | 6 | 10 | |
| STX | 395.35 | 4 | 7 | 102.47 | 2 | 4 | 53.87 | 2 | 10 | |
| NEO | 411.77 | 3 | 10 | 105.75 | 4 | 6 | 54.29 | 4 | 9 | |
| TTX, 4-epiTTX | 501.89 | 2 | 7 | 124.71 | 3 | 6 | 64.94 | 4 | 5 | |
| 11-deoxyTTX | 14.56 | 4 | 9 | 3.82 | 8 | 14 | 2.00 | 9 | 12 | |
| 4,9-anhydroTTX | 55.01 | 3 | 12 | 14.22 | 12 | 13 | 7.41 | 10 | 16 | |
| dcGTX3 | 74.82 | 2 | 3 | 19.52 | 3 | 3 | 10.65 | 3 | 3 | |
| GTX6 | 9.91 | 3 | 10 | 2.53 | 5 | 12 | 1.25 | 10 | 15 | |
| GTX5 | 43.70 | 1 | 6 | 11.15 | 2 | 7 | 5.88 | 3 | 9 | |
| C2 | 29.85 | 3 | 15 | 7.86 | 5 | 13 | 4.26 | 8 | 9 | |
| GTX2 | 313.05 | 5 | 8 | 81.00 | 4 | 7 | 40.55 | 5 | 7 | |
| GTX3 | 198.16 | 6 | 8 | 52.38 | 6 | 6 | 27.90 | 7 | 9 | |
| GTX1 | 470.33 | 5 | 6 | 117.73 | 5 | 4 | 58.58 | 6 | 8 | |
| GTX4 | 105.04 | 8 | 11 | 27.93 | 9 | 10 | 14.22 | 15 | 18 | |
| dcGTX2 | 133.61 | 3 | 5 | 34.21 | 5 | 6 | 17.28 | 6 | 6 | |
| C1 | 9.99 | 3 | 5 | 2.67 | 5 | 10 | 1.57 | 6 | 18 | |