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. Author manuscript; available in PMC: 2010 Mar 23.
Published in final edited form as: J AOAC Int. 2007 Jan–Feb;90(1):173–178.

Table 2.

Measurements of intermediate precision expressed as RSD, %

0.1 ng/mLa 0.5 ng/mLa 5.0 ng/mLa
Between analysts (n = 2) 2.3% 7.5% 3.6%
Between assays (n = 10) 12.7% 8.8% 8.3%
Between days (n = 8) 11.9% 7.3% 9.0%
a

Concentrations are those of PbTx-3 in the spiked “unknown” samples.