Actual concentration (µg/ml) Found concentration (µg/ml) Ratio ±SD (RSD %) 50 6.25 0.78 51.9 ± 0.55 (3.8) 5.87 ± 0.12 (6.08) 0.64 ± 0.02 (17.9)

All concentrations in μg/ml, SD- standard deviation

Table 3: Precision for plasma alpha-LA assay.