Precision data - vitamin E

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Table 1. Results of interlaboratory studies.

Matrix parameter

Milk powder,
α-tocopherol

Milk powder,
β-tocopherol

Milk powder,
γ-tocopherol

Milk powder,
δ-tocopherol

Oat powder,
α-tocopherol

Oat powder,
β-tocopherol

Repeatability RSDr

3,0 %

11,1 %

5,5 %

10,4 %

9,0 %

10,5 %

Reproducibility RSDR

12,8 %

19,8 %

17,4 %

16,8 %

16,8 %

19,3 %

Data obtained in 1993.

Precision data from EN 12822:

Precision data1.jpg

Precision data2.jpg