AOAC SPIFAN Nutrients ERP-Final Review (Oct. 2018) Pubs

2011.06 (September 2017)-Fol-22 MLT Report

FOR ERP USE ONLY DO NOT DISTRIBUTE

Table 4 (continued): Precision results for the AOAC SPIFAN MLT samples

Infant formula ready to feed – milk-based - Liq

Adult nutritional ready to feed – high protein - Liq

Low-Fat adult nutritional powder

Soy-based infant formula

Parameters

Symbol

Units

TJHR217/ OACN211

LYNY751/ PZGP859

FPTE312/ DOMY545

XKIP216/ HYJU890

Total number of laboratories Total number of replicates

10

11

11

11

p

30

22

22

22

Sum(n(L)) XBARBA R

Overall mean of all data (grand mean) Repeatability standard deviation Reproducibility standard deviation Repeatability relative standard deviation

171.7

323.5

48.9

15.6

µ g/100g

10.1

15.3

1.8

0.77

µ g/100g

SD r

17.7

33.1

5.4

2.4

µ g/100g

SD R

5.9

4.7

3.7

5.0

RSD r

%

10.3

10.2

11.0

15.7

Reproducibility relative standard deviation

RSD R

%

0. 70

0.62

0.76

0.74

HORRAT value

HorRat R

SMPR Repeatability Limit

7.0

7.0

7.0

11.0

RSD r

%

16.0

16.0

16.0

32.0

SMPR Reproducibility Limit HORRAT (Satisfactory Limit)

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) 15