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. Author manuscript; available in PMC: 2010 May 4.
Published in final edited form as: Anal Biochem. 2008 Dec 7;386(1):45–52. doi: 10.1016/j.ab.2008.12.003

Table 1.

Inter and intraassay variations of PHAIA.

Fortification level (ng/ml) aInterassay variation bIntraassay variation
N Measured (ng/ml) Average recovery (%) CV (%) N Measured (ng/ml) Average recovery (%) CV (%)
5 7 4.9 ± 0.4 98 8.2 16 4.9 ± 0.3 98 6.1
10 7 10.3 ± 1.6 103 15.5 16 10.4 ± 0.6 104 5.8
20 7 18.1 ± 1.7 91 9.4 16 20.2 ± 1.5 101 7.4
a

Interassay variation was determined by four replicates on seven different days.

b

Intraassay variation was determined by 16 replicates on a single day.