Table 2.
Recovery assessment for blue-green algae (BGA) dietary supplement samples containing spirulina.
| Recoveries (%) (n = 6) | ||||||
|---|---|---|---|---|---|---|
| L1 | L2 | L3 | ||||
| Analyte | R % | RSD % | R % | RSD % | R % | RSD % |
| MC-LR | 74.0 | 15.1 | 76.6 | 9.9 | 81.6 | 9.2 |
| NOD | 102.9 | 16.1 | 94.1 | 19.2 | 77.7 | 15.4 |
| MC-RR | 91.2 | 11.6 | 89.9 | 5.1 | 88.0 | 4.4 |
| ANA | 87.8 | 11.8 | 80.1 | 10.2 | 78.7 | 9.0 |
| BMAA | 70.2 | 17.5 | 64.2 | 16.8 | 80.7 | 16.5 |
| DAB | 91.0 | 11.8 | 76.6 | 12.5 | 72.9 | 11.7 |
| AEG | 82.7 | 11.1 | 67.9 | 18.2 | 81.6 | 14.0 |
Concentration levels (L1, L2 and L3) were established as follows: 60, 150 and 350 µg·kg−1 for MC-LR; 50, 150 and 350 µg·kg−1 for NOD and MC-RR; 150, 300 and 600 µg·kg−1 for ANA; 300, 800 and 1800 µg·kg−1 for BMAA and DAB; and 150, 600 and 1800 µg·kg−1 for AEG.