TABLE 5.
Assay detection limit established by titration of pool 5 reference antiserum
| Expected value from dilution factor (WR U/ml) | Value observed in assay (WR U/ml)a
|
Accurate quanti- tation | ||
|---|---|---|---|---|
| Expt 1 | Expt 2 | Expt 3 | ||
| 180.0 | 177.1 (−1.6) | 179.8 (0.1) | 182.9 (1.6) | Yes |
| 90.0 | 74.2 (−17.6) | 83.4 (−7.3) | 82.8 (−8.0) | Yes |
| 45.0 | 36.6 (−18.7) | 38.4 (−14.7) | 39.5 (−12.2) | Yes |
| 22.5 | 17.5 (−22.2) | 20.0 (−11.1) | 19.1 (−15.1) | Yes |
| 11.2 | 9.9 (−11.6) | 10.2 (−8.9) | 9.0 (−19.6) | Yes |
| 5.6 | 4.9 (−12.5) | 4.8 (−14.3) | 3.6 (−35.7) | Yes |
| 2.8 | 0.3 (−89.3) | 1.0 (−64.3) | 0.6 (−78.6) | No |
a
The percent error is given in parentheses.