Matrix Recovery range (%) Average(%) serum(n=5) 90-98 95 EDTA plasma(n=5) 78-94 89 heparin plasma(n=5) 95-104 98PrecisionIntra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Apolipoprotein B (APOB) were tested 20 times on one plate, respec...