Precision data - all-trans-retinol and 13-cis-retinol

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Table 1. Results of interlaboratory studies.

Matrix Parameter

Margarine (CRM 122)
all-trans-retinol

Margarine (CRM 122)
13-cis-retinol

Milk powder (CRM 421)
all-trans-retinol

Milk powder (CRM 421)
13-cis-retinol

Repeatability RSDr

3,8 %

7,7 %

2,1 %

5,0 %

Reproducibility RSDR

10,0 %

30,8 %

3,4 %

24,0 %


Results obtained in 1994.


Precision data from EN 12823-1:


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