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Table 1 Inter-day and intra-day precision of triptolide, triptonide, wilforlide and tripterine in intestinal perfusate solutions (inter-day n = 6; intra-day n = 6)

From: Different modulation of Panax notoginseng on the absorption profiling of triptolide and tripterine from Tripterygium wilfordii in rat intestine

Con. (μg/mL)

Triptolide

Triptonide

Wilforlide

Tripterine

0.5

1.0

3.0

0.2

1.0

2.0

0.5

1.0

2.5

0.2

1.0

2.0

Inter-day (%)

1.11

0.52

1.62

1.63

0.40

1.27

1.48

0.95

1.11

1.53

0.33

1.14

Intra-day (%)

1.18

0.63

1.80

1.77

0.44

1.35

1.72

1.05

1.25

1.79

0.37

1.47