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.