Precision data - vitamin K1
EN 14148:
Table 1. Results of the interlaboratory tests, part 1.
|
|
UHT whole liquid milk,
|
Goat whole milk powder,
|
Milk-based infant formula
|
Whey-based infant formula,
|
|---|---|---|---|---|
|
Repeatability standard deviation s r, µg/100 g |
0,04
|
0,21
|
5,00
|
1,54
|
|
Repeatability coefficient of variation, % |
9,03
|
3,23
|
4,24
|
4,77
|
|
Repeatability limit r = [2,8 x s r], µg/100 g |
0,12 |
0,60 |
14,01
|
4,31
|
|
Reproducibility standard deviation s R, µg/100 g |
0,05
|
0,39
|
6,50
|
2,14
|
|
Reproducibility coefficient of variation, % |
10,94
|
5,81
|
5,50
|
6,63
|
|
Reproducibility limit r = [2,8 x s R], µg/100 g |
0,15
|
1,08
|
18,19
|
5,98
|
Results obtained in 1998.
Table 2. Results of the interlaboratory tests, part 2.
|
|
Soy-based infant formula, |
Whey-based infant formula, |
Whey-based infant formula, |
NIST SRM 1846, |
|---|---|---|---|---|
|
Repeatability standard deviation sr, µg/100 g |
2,04 |
2,54 |
4,04 |
5,38 |
|
Repeatability coefficient of variation, % |
2,59 |
5,11 |
4,44 |
5,68 |
|
Repeatability limit r = [2,8 x sr], µg/100 g |
5,71 |
7,11 |
11,32 |
15,05 |
|
Reproducibility standard deviation sR, µg/100 g |
3,40 |
3,80 |
4,14 |
6,41 |
|
Reproducibility coefficient of variation, % |
4,33 |
7,66 |
4,56 |
6,78 |
|
Reproducibility limit r = [2,8 x sR], µg/100 g |
9,53 |
10,65 |
11,60 |
17,95 |
Results obtained in 1998.
