Table 3.
Assessment of accuracy and precision from quality control samplesa
| Nominal (ng/mL) |
GM (ng/mL) |
S.D. (ng/mL) |
DEV (%) |
BRP (%) |
WRP (%) |
n |
|---|---|---|---|---|---|---|
| 3.00 | 2.86 | 0.161 | -4.76 | 3.43 | 4.63 | 30 |
| 40 | 40.40 | 2.714 | 0.99 | NA | 7.31 | 30 |
| 80 | 79.54 | 4.079 | -0.58 | NA | 5.19 | 30 |
Abbreviations: GM, grand mean; S.D., standard deviation; DEV, percent deviation from nominal value; WRP, within-run precision; BRP, between-run precision; n, total number of replicate observations within the validation runs. NA, not applicable, in this case it means no further between-run variance was observed.
a
Five samples at each concentration were run on six different occasions.