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Table 2 Accuracy and precision for the analysis of CXB in rat plasma (n = 3 days, six replicates per day)

From: Effect of Andrographis paniculata extract and Andrographolide on the pharmacokinetics of Aceclofenac and Celecoxib in rats

Nominal concentration ng/ml

Measured (mean ± SD)

Intra batch

Inter batch

% RSD

% RE

% RSD

% RE

CXB

10

7.64 ± 0.55

1.58

0.60

1.25

0.04

200

187.3 ± 5.85

2.36

0.11

2.23

0.13

800

790.5 ± 6.53

1.03

0.05

1.23

0.13

1000

948.9 ± 12.04

0.97

0.08

1.04

0.12

ACF

50

48.50 ± 0.48

3.424

0.077

3.424

0.089

100

95.74 ± 2.45

2.366

0.100

2.952

0.062

450

444.4 ± 4.00

0.738

0.037

0.303

0.083

900

884.8 ± 3.19

0.317

0.089

0.193

0.063