Table 10.
Repeatability (RSD, %) for between-day analysis of spiked and naturally contaminated mycotoxins in feed samplesa
| Feed | Level | AFB1 | AFB2 | AFG1 | AFG2 | OTA | DON | FB1 | FB2 | HT-2 | T-2 | ZON |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DDGS | Low | 8.8 | 15.8 | 5.1 | 7.3 | 3.4 | 3.3 | 5.1 | 7.4 | 5.1 | 5.0 | 3.5 |
| Medium | 20.3 | 15.8 | 14.1 | 12.7 | 6.8 | 5.5 | 6.8 | 5.8 | 7.9 | 8.9 | 4.5 | |
| High | 12.0 | 12.4 | 7.0 | 7.3 | 4.3 | 5.8 | 4.3 | 12.1 | 3.2 | 3.2 | 6.3 | |
| Pig feed | Low | 13.2 | 27.7 | 12.9 | 14.0 | 5.3 | 13.1 | 8.9 | 7.6 | 15.9 | 39.4 | 14.0 |
| Medium | 7.6 | 17.7 | 10.0 | 13.2 | 6.4 | 6.7 | 5.5 | 3.9 | 17.9 | 13.2 | 5.5 | |
| High | 10.0 | 15.8 | 8.9 | 9.8 | 6.0 | 10.3 | 7.2 | 6.6 | 31.2 | 29.9 | 6.9 | |
| Poultry feed | Low | 7.5 | 11.0 | 7.7 | 9.3 | 5.3 | 10.6 | 4.2 | 4.1 | 7.4 | 4.3 | 3.8 |
| Medium | 9.7 | 9.5 | 6.6 | 6.9 | 6.8 | 10.1 | 6.1 | 8.2 | 6.8 | 13.1 | 7.0 | |
| High | 9.0 | 7.8 | 6.6 | 9.0 | 9.5 | 5.2 | 7.2 | 6.7 | 6.9 | 7.1 | 5.0 | |
| CENb | Lowest | 0.5 | n/a | n/a | n/a | 4.1 | 4.0 | 4.4 | 4.8 | 3.6 | 5.1 | 3.9 |
| Highest | 24.1 | n/a | n/a | n/a | 12.1 | 6.9 | 7.8 | 9.3 | 84.6 | 10.1 | 37.4 |
a
Repeatability based on n = 18 for both spiked and naturally contaminated mycotoxins in feed samples.
b
Repeatability data taken from CEN multi-mycotoxin standard (20).