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

1890  B handari et al . : J ournal of AOAC I nternational V ol . 101, N o . 6, 2018

P 11 10 11 11 10 11 11 11 11 11 11

Sum( n (L)) 22 20 22 33 30 22 22 22 22 22 22

SMPR repeatability limit, % RSD(r) 7.0 7.0 7.0 7.0 7.0 7.0 7.0 11.0 7.0 7.0 7.0

RSD r 5.3 4.2 6.6 6.1 5.9 4.7 3.7 5.0 4.1 5.5 3.5

15.4 15.9 27.2 24.8 17.7 33.1 5.4 2.4 31.4 31.5 6.1

8.1 5.6 11.5 14.9 10.1 15.3 1.8 0.8 14.5 14.3 2.0

SMPR reproducibility limit, % RSD(R) 16.0 16.0 16.0 16.0 16.0 16.0 16.0 32.0 16.0 16.0 16.0 HorRat HorRat 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0 0.5–2.0

HorRat value HorRat 0.66 0.79 1.06 0.72 0.70 0.76 0.62 0.74 0.68 0.88 0.61

RSD R 10.0 12.1 15.7 10.1 10.3 10.2 11.0 15.7 9.0 12.2 10.6

x 154.8 131.5 173.7 245.3 171.7 323.5 48.9 15.6 349.5 258.6 57.0

nutritional ready to feed – high fat – Liq

Sample 11: Adult

Sample 10: Infant

elemental powder

formula powder – milk-based

Sample 9: Child

– milk-based – Liq

Sample 8:

ready to feed

Infant formula

7: Adult

Sample

ready to

nutritional

feed – high

protein – Liq

Low-fat adult nutritional powder

Sample 6:

Table 2. The method precision for total folate analysis in the SPIFAN MLT samples a Parameters Symbol Sample 1: Milk-based infant formula Sample 2: Infant formula powder, partially hydrolyzed milk-based Sample 3: Infant formula powder, partially hydrolyzed soy-based Sample 4: NIST SRM 1869 Infant/ Adult Nutritional Formula Sample 5: Soy-based infant formula Total No. of laboratories Total No. of replicates Overall mean of all data (grand mean), µg/100g Repeatability standard deviation, µg/100g s r Reproducibility standard deviation, µg/100g s R Repeatability relative standard deviation, % Reproducibility relative standard deviation, %

(satisfactory limit)

a  Results of total folate reported as folic acid, mcg/100 g.