Table 6:
Source | Variance | SD | RSD |
---|---|---|---|
Reproducibility (lab to lab) | 0.0089 | 0.0942 | 5.44% |
Repeatability (sample to sample) | 0.0009 | 0.0308 | 1.78% |
The mean value for the four labs was 1.73 mg with 95% confidence interval: 1.580 mg to 1.884 mg. Five labs performed AAA testing but one lab’s results were excluded due to the amino acids standard solution preparation error.