Phloretin concentration (µg/ml)

 

 

 

 

 

 

Added

Observed

 

 

R.S.D (%)

 

 

Bias (%)

 

 

Within-day

Between-day

 

Within-day

Between-day

 

Within-day

Between-day

0.5

0.546

0.546

 

9.62

10.9

 

9.22

9.18

1.0

1.02

0.96

 

3.94

9.77

 

2.11

-3.58

5.0

4.32

4.61

 

5.47

13.6

 

-13.5

-7.75

10

9.52

9.21

 

4.20

7.99

 

-4.79

-7.95

50

52.1

52.3

 

1.09

4.94

 

4.25

4.60

100

99.0

99.0

 

0.31

1.16

 

-1.01

-0.98

Table 1: Within- and between-day precision and accuracy of the assay for phloretin in rat serum (n = 5, mean, R.S.D., and Bias).