Table 1.
Calibration curves in methanol, correlation coefficients, extraction recovery (%), and signal suppression/enhancement (SSE) (%) due to matrix. Values shown are mean ± standard deviation (SD) of three experiments.
| Toxin | Curves | R 2 | Recovery (%) | SSE (%) |
|---|---|---|---|---|
| Free OA | y = 2381.975x − 561.583 | 0.9977 | 76.03 ± 15.28 | 211.70 ± 19.54 |
| Free DTX-2 | y = 2013.034x + 633.298 | 0.9937 | 85.24 ± 4.29 | 181.51 ± 6.85 |
| PTX-2 | y = 34362.389x − 5660.310 | 0.9987 | 92.34 ± 4.88 | 88.27 ± 6.37 |
| AZA-2 | y = 543036.015x + 83486.877 | 0.9962 | 98.8 ± 4.80 | 33.14 ± 1.65 |
| SPX-13 | y = 581714.049x + 292701.316 | 0.9997 | 110.48 ± 0.86 | 70.27 ± 6.75 |
| PnTX-G | y = 387054.739x + 39641.076 | 0.9994 | 90.95 ± 1.61 | 64.74 ± 3.58 |
| Hydrolyzed OA | y = 1956.583x − 217.441 | 0.9992 | 63. 28 ± 1.61 | 162.37 ± 14.85 |
| Hydrolyzed DTX-2 | y = 1702.876x + 585.842 | 0.9991 | 62.63 ± 1.63 | 160.25 ± 3.81 |