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. Author manuscript; available in PMC: 2015 Apr 16.
Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Jun 2;856(0):141–147. doi: 10.1016/j.jchromb.2007.05.028

Table 3.

Intra-day and inter-day precision from assay calibration data for 17-OHPC in human plasma

Added Concentration (ng/ml) Intra-Assay Precision (%) N=6 Inter-Assay Precision (%) N=6
Mean ± SD CV (%) Bias (%) Mean ± SD CV (%) Bias (%)
0.50 0.57±0.10 16.72 15.63 0.47±0.07 14.26 −6.52
1.00 1.14±0.14 12.46 14.12 1.08±0.13 12.33 7.77
2.50 2.62±0.36 13.79 4.89 2.59±0.35 13.63 3.63
5.00 4.94±0.07 1.46 −1.26 5.09±0.67 13.09 1.87
10.00 10.22±0.53 5.22 2.23 9.88±0.79 7.97 −1.18
25.00 24.58±0.93 3.77 −1.68 24.76±2.61 10.53 −0.98
50.00 50.13±2.70 5.38 0.27 50.13±2.24 4.66 0.27