AOAC Methods for Review in Codex STAN 234_11-2018

Table 4. Results for determination of copper ( µ g/g) by AOAC Official Method 985.35 in soy, whey, and enteral formulae AOAC Official Methods Listed in CXS 234 for Milk and Milk Products

93

Youden pair

Youden pair

Enteral sample 7

RTF soy sample 4 a

Soy powder sample 1 b

Soy powder sample 5 b

RTF soy sample 6

RTF soy sample 2 a

Whey powder sample 3

Laboratory

1 2 3 4 5 6 7 8

1.17 1.10 1.00 0.79 1.10 1.04 0.94 1.02

1.04 0.78 1.00 0.80 0.80 0.87 0.83 0.90

0.85 0.53 0.80 0.62 0.80 0.72 0.66 0.83

0.65 0.56 0.60 0.48 0.60 0.51 0.52 0.52

4.16 3.33 3.70 3.42 4.00 3.59 3.60 3.17

4.73 3.95 4.20 4.28 4.00 4.22 4.06 3.99

5.11 4.46 4.80 4.81 5.00 4.75 4.46 4.65

0.80 a

3.90 b 0.19 b

0.56

4.76

Mean

1.02

0.056 a

s r

7.0 a

4.8 b

, %

RSD r

0.106 a

0.30 b

0.12

0.06

0.23

s R

13 a

7.6 b

, %

12

11

4.8

RSD R

a Youden closely matched pairs. b Youden closely matched pairs.

10/9/2018