AOAC SPIFAN Nutrients ERP-Final Review (Oct. 2018)
2011.06 (September 2017)-Fol-22 MLT Report
FOR ERP USE ONLY DO NOT DISTRIBUTE
Table 4: Precision results for the AOAC SPIFAN MLT samples
Infant formula powder, partially
Infant formula powder, partially
Milk-based infant formula
SRM 1869a
Parameters
Symbol
Units
hydrolyzed milk-based KDOX966/ ATAN351
hydrolyzed soy-based SWUO667/ MYHK654
CULF358/ GBZC169
PTLO721/ GBZC169
Total number of laboratories Total number of replicates
11
10
11
11
p
22
20
22
33
Sum(n(L))
Overall mean of all data (grand mean) Repeatability standard deviation Reproducibility standard deviation Repeatability relative standard deviation Reproducibility relative standard deviation HORRAT value SMPR Repeatability Limit SMPR Reproducibility Limit HORRAT (Satisfactory Limit)
154.8
131.5
173.7
245.3
XBARBAR µ g/100g
8.1
5.6
11.5
14.9
µ g/100g
SD r
15.4
15.9
27.2
24.8
µ g/100g
SD R
5.3
4.2
6.6
6.1
RSD r
%
10.0 0.66
12.1
15.7
10.1
RSD R
%
0.79
1.06
0.72
HorRat R
7.0
7.0
7.0
7.0
RSD r
%
16.0
16.0
16.0
16.0
RSD R
%
0.5-2.0
0.5-2.0
0.5-2.0
0.5-2.0
HorRat R
Collaborative Study Report: Method AOAC 2011.06 (Folate by LC-MS/MS) 14
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