2015.14 Vitamin B (July 2018)

2015.14 (JULY 2018) BVit‐02 Total Bs ERP Evaluation Form

FOR ERP USE ONLY DO NOT DISTRIBUTE

Table 5a. Determination of linearity – average concentration recovery of independent standards run as samples on five separate days (N=5)

Standard Overall (n = 5)

Thiamine Riboflavin

Niacin Nicotinic Acid Pyridoxal

Pyridoxamine Pyridoxine

Recovery (%)

99.2

99.6

98.3

100.5

104.4

101.3

100.9

WS1

RSD (%)

3.5

6.6

5.9

7.3

15.4 97.9 10.2 95.3 10.7

7.2

2.3

Recovery (%)

100.4

99.9

100.8

99.1

100.3

98.8

WS2

RSD (%)

3.2

4.9

5.1

4.7

3.5

1.6

Recovery (%)

100.3

100.3

101.2

100.0

97.5

100.0

WS3

RSD (%)

2.1

3.7

3.2

2.2

4.6

1.3

Recovery (%)

100.5

100.6

100.5

100.4

104.3

99.8

100.4

WS4

RSD (%)

2.2

3.4

3.4

2.6

9.9

3.6

2.0

Recovery (%)

99.6

99.6

99.3

99.8

98.9 10.9

100.7

99.9

WS5

RSD (%)

2.4

1.9

2.5

1.8

4.0

1.4

Recovery (%)

100.1

100.1

100.2

100.0

100.1

99.8

100.0

WS6

RSD (%)

2.2

1.1

3.0

1.8

8.7

3.2

1.1