Table 2.
Intraday and Interday Assay Precision and Accuracy
| Analytes | Concentration (ng/ml) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Intraday Assay (n=4) | Interday Assay (n=9) | ||||||||
| Added | Mean | SD | CV (%) | Bias (%) | Mean | SD | CV (%) | Bias (%) | |
| Arachidonic acid | 300 | 313 | 10 | 3.3 | 4.4 | 280 | 9.5 | 3.4 | −6.8 |
| 5-HETE | 15.0 | 5.5 | 1.4 | 9.3 | 2.8 | 15.0 | 1.2 | 7.7 | −0.1 |
| 8-HETE | 15.0 | 16.0 | 1.3 | 8.3 | 6.4 | 15.6 | 1.2 | 7.8 | 4.0 |
| 9-HETE | 15.0 | 15.5 | 2.1 | 14 | 3.4 | 15.0 | 1.6 | 10.9 | 0.1 |
| 11-HETE | 15.0 | 15.0 | 0.6 | 4.3 | 0.2 | 14.7 | 0.8 | 5.4 | −2.2 |
| 12-HETE | 15.0 | 15.4 | 0.5 | 3.4 | 2.7 | 14.9 | 0.8 | 5.3 | −3.9 |
| 15-HETE | 15.0 | 15.2 | 1.2 | 7.7 | 1.2 | 15.0 | 0.8 | 5.6 | −0.1 |
| PGF2α | 5.0 | 5.5 | 0.6 | 10 | 9.6 | 5.4 | 0.6 | 10.6 | 7.8 |
| Linoleic acid | 450 | 473 | 16 | 3.3 | 5.0 | 431 | 23 | 5.3 | −4.2 |
| 9-HODE | 15.0 | 15.2 | 1.1 | 7.2 | 1.3 | 14.9 | 0.8 | 5.5 | −0.5 |
| 13-HODE | 15.0 | 15.3 | 0.6 | 3.8 | 1.7 | 15.1 | 0.6 | 4.0 | 0.8 |