SPIFAN Stakeholder Panel (March 15, 2017)
8 Maximum Time-to-Signal No maximum time.
Approved by the AOAC Stakeholder Panel on Infant Formula and Adult Nutritionals (SPIFAN). Final Version Date: April 5, 2011. Effective Date: June 29, 2011.
Table 1. Method performance requirements a
0.50–300 b
Analytical range
≤0.10 b
Limit of detection (LOD)
≤0.50 b
Limit of quantitation (LOQ)
0.50–21.5 b
Repeatability (RSD r )
≤11%
>21.5 b
≤7%
Recovery
90–110%
0.5–21.5 b
Reproducibility (RSD R )
≤32%
>21.5 b
≤16%
a Concentrations apply to ( 1 ) “ready-to-feed” liquids “as is”; ( 2 ) reconstituted powders (25 g into 200 g water); and ( 3 ) liquid concentrates diluted 1:1 by weight. b µg/100 g expressed as folic acid in reconstituted final product.
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