AOAC Final Action Methods in 2017

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Table 6. Comparison of results from Method 2015.06 (ICP-MS, 10 laboratories) and Method 2011.14 (ICP-AES, 12 laboratories) collaborative studies

RSD r (AES versus MS)

RSD R (AES versus MS)

mg/100 g a

MS versus AES SMPR: <5%

SMPR: <10%

ICP-AES RSD r

ICP-AES RSD R

ICP-MS RSD R

ICP-MS mean

ICP-AES mean

ICP-MS RSD r

Difference

Difference

Sample

Difference, %

Calcium

Adult Low-Fat Powder

34.2 53.9 14.4 c 96.5 7.45 c 34.2 48.2 43.3 67.9 61.9 45.5 69.2 36.8 57.7 73.8 52.6 29.6 65.5

34.6 55.5 14.5 99.0 7.44 34.4 49.5 38.2 68.9 63.2 45.7 69.5 36.7 74.4 48.9 30.3 65.9 116 105 709 689 19.8 58 44.0 222 177 150 7.64 69.7 55.1 84.9 86.4 67.5 78.3 48.3 76.1 82.7 81.4 61.4 136 157 130 1868 98 494

– 1.3 – 2.9 – 0.8 – 2.5

1.3

4.3

3.0 1.6

4.1

7.2

3.1 6.6 1.0 5.6 9.6 2.7 7.5 3.6 5.7 5.1 4.2 4.9 4.0 3.3 3.8 7.2 3.7 1.7 4.1

7.7 b

9.3 b

27.8 b

Adult High-Fat RTF

21

Placebo, High-Fat Adult High-Protein Placebo, High-Protein

2.7 2.2 1.6 1.2 1.3 1.3 1.5 1.4 1.7 1.1 1.2 2.6 1.7 1.3 1.7 1.4 1.5 1.5 1.5 4.2 1.4 2.0 1.2 1.4 1.9 1.2 2.0 1.6 0.7 2.1 1.2 1.5 1.7 1.5 1.8 1.7 1.2 1.1 1.2 1.1 2.4 2.7 3.0 2.4

2.2

– 0.5

4.4 4.7 5.2 4.8 3.1 4.0 3.8 3.1 4.2 3.0 3.4 4.7 4.0 5.7 4.1 3.4 4.2 4.1 18 b 5.8 7.4 5.2 5.6 3.8 5.2 2.9 4.9 4.2 6.0 2.8 3.4 2.8 3.7 4.4 2.1 3.6 3.6 2.5 3.7 4.1 3.0 5.2 6.8 14 b

5.3

7.3 b

10.3 b 14.8 b

5.1 0.7 1.5 3.4 1.3 2.4 0.8 2.1 0.9 1.2 2.1 2.7 0.8 0.6 1.1 1.8 0.0 3.4 0.5 0.8 0.3 0.8 2.7 4.5 0.7 0.4 0.6 0.3 1.7

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0.1

2.2 2.6 4.7 2.6 3.9 2.1 0.9 3.2 2.1 3.8 3.8 2.1 2.4 2.5 3.3 1.5 4.9 2.1 1.7 3.7 1.7 2.2 2.2 1.9 1.6 4.3 2.8 1.5 2.1 1.3 2.6 1.6 3.5 3.0 1.1 4.2 1.8 2.3 1.3 1.3 1.3

Placebo, Child Milk

– 0.5 – 2.7

7.5

10.6 b

Child Milk Powder

Child Elemental Powder Infant Elemental Powder

13

7.7 9.5 8.2 8.4 7.9 7.4 7.9 7.8 3.6 7.2 5.8 8.2 3.3 5.5 8.2 3.9 8.5 5.9 4.2 4.6 3.5 4.5 8.7 6.3 5.6 8.3 6.6 5.4 5.8 6.7 6.5 5.6 4.4 6.7 6.5 7.5 15 b

– 1.4 – 2.2 – 0.5 – 0.4

Placebo, Elemental

Infant, Partly Hydrolyzed Milk Infant, Partly Hydrolyzed Soy

– 0.8

Infant FOS/GOS Powder

0.3

Infant Powder Milk Infant Powder Soy Infant RTF Control Placebo, Infant RTF

– 0.5 – 0.8

5.7 b

8.5 b

12.9 b

7.3

– 2.3 – 0.6 – 0.9

– 0.5

Toddler Powder

Whole-Milk Liquid

115 106 670 689

Whole-Milk Powder

0.7

Whey Powder

– 5.7

– 14.6

Whey Protein Concentrate

0.0

– 0.3

19.1 c

Butter

– 3.4

– 2.1

0.8

Cheese

498

0.8

– 1.3

Mean (above SMPR limit)

– 0.18

2.9

Potassium

Adult Low-Fat Powder

44.7

1.5

2.1

Adult High-Fat RTF

220 178 151 98.9 7.90 c 70.9 56.4 87.4 86.1 68.1 80.0 49.5 77.8 84.1 80.8 62.2 138.1

– 1.0

– 1.0

Placebo, High-Fat Adult High-Protein Placebo, High-Protein Placebo, Child Milk Child Milk Powder Child Elemental Powder Infant Elemental Powder

0.5 0.7 0.5 3.4 1.8 2.4 2.9 0.9 2.1 2.4 2.2 1.7 1.3 1.2 3.4 3.8 7.0 5.3

1.8

– 1.4

– 0.3

0.3 4.7 5.9 2.9 2.8 4.7 2.2 3.3 2.1 3.1 4.0 1.9 0.3 3.7 1.3 0.7 1.0 0.2

10.7 b

5.2 b

Placebo, Elemental

– 0.4

Infant, Partly Hydrolyzed Milk Infant, Partly Hydrolyzed Soy

– 0.3

1.1

Infant FOS/GOS Powder

– 0.2

Infant Powder Milk Infant Powder Soy Infant RTF Control Placebo, Infant RTF

1.8 1.8 0.0 3.0 0.6

– 0.8

Toddler Powder

Whole-Milk Liquid

163 135

– 0.1 – 1.4 – 1.7 – 1.1

Whole-Milk Powder

Whey Powder

2004

Whey Protein Concentrate

831

788

7.1

7.3