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. 2013 Mar 5;8(3):e57631. doi: 10.1371/journal.pone.0057631

Table 2. Inter-assay % Bias and precision (% CV) of lyso-Gb3 quality control human plasma samples.

QC (actual conc.) Low1 (2.00) Low2 (4.00) Mid1 (40.0) Mid2 (80.0) High (200)
Mean ± SD (ng/mL) 2.07±0.249 3.75±0.617 41.2±5.20 75.0±6.94 200±19.7
% CV 12.0 16.4 12.6 9.25 9.84
% Bias 3.60 −6.16 2.95 −6.19 0.15

Quality control samples were prepared in normal human plasma at five concentration levels and analyzed on four separate days. Twenty replicates at each concentration level were used for inter-assay determination. Conc., concentration (ng/mL); SD, Standard Deviation.