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).