AOAC SPIFAN Nutrients ERP Review (March 14, 2019)

2016.13 (Jan. 2019) Carot-02 MLT Report FOR ERP USE ONLY DO NOT DISTRIBUTE

Figure 7. HorRat values for all- trans -lutein in fortified samples. Sample A = NIST SRM 1869, B = Milk-based toddler formula powder, C = Adult nutritional powder, D = Milk-based infant formula powder, E = Milk-based infant formula powder, F = Chocolate pediatric nutritional ready-to-feed. Table 6. Precision data for total lutein

Precision parameter Total number of laboratories Total number of replicates Number of outliers Grand mean (µg/100 g)

Symbol

A

B

C

D

E

F

p

10

10

10

10

10

10

n

10

10

9 1

10

10

8 2

-

0

0

0

0

x̅

31.3

30.5

100.4

12.8

6.7

142.9

Repeatability SD (µg/100 g) Reproducibility SD (µg/100 g)

SD r

0.9

2.0

2.2

1.5

0.7

3.6

SD R

5.2 3.0

5.3 6.6

11.5

2.2

1.3 9.8

17.6

Repeatability RSD (%) SMPR repeatability limit Reproducibility RSD (%) SMPR reproducibility limit

RSD r

2.2

12.0

2.5

-

8

8

8*

8

8

5

RSD R

16.6

17.5

11.5

17.0

19.9

12.3

-

15

15

15*

15

15

10

Horwitz ratio 0.81 Sample A = NIST SRM 1869, B = Milk-based toddler formula powder, C = Adult nutritional powder, D = Milk-based infant formula powder, E = Milk-based infant formula powder, F = Chocolate pediatric nutritional ready-to-feed *SMPR limits for up to 100 mcg/100 g. HorRat 0.87 0.91 0.72 0.78 0.83

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