Precision data - B6 by HPLC

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Table 1. Results of interlaboratory studies (1993)

Matrix parameter

Baby food

Biscuit

Cereal B

Yeast

Tube-feeding
solution

Chocolate
powder

Cereal A

Powdered milk

Repeatability RSDr

18 %

13 %

10 %

8 %

4 %

4 %

6 %

3 %

Reproducibility RSDR

30 %

35 %

30 %

26 %

13 %

12 %

12 %

13 %

Results obtained in 1993.


Table 2. Results of interlaboratory studies (2003)

Matrix parameter

Sample 1

Sample 2

Sample 3

Sample 4

Sample 5

Sample 6

Sample 7

Sample 8

Repeatability RSDr

10 %

3,3 %

2,0 %

4,0 %

16.4 %

5,9 %

4,5 %

3,5 %

Reproducibility RSDR

17,5 %

8,2 %

8,4 %

8,4 %

52.1 %

11,2 %

7,4 %

6,4 %

Sample 1: Non-fortified milk based infant formula, samples 2-4: fortified milk based infant formula, sample 5: non-fortified soy based

infant formula, samples 6-8: fortified soy based infant formula.
Results obtained in 2003.


Precision data from EN 14164:2008

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