Table 1

PeaksConstituentsConcen. (mg/g)LinearityLOD (g/L)LOQ (g/L)CV (%)

1paeoniflorin6.01 ± 0.1
(6.74–67.4 g/mL)
3.27.26.21

2liquiritin1.6 ± 0.03
(4.84–48.4 g/mL)
1.84.95.23

3ammonium glycyrrhetate6.9 ± 0.06
(7.2–70.2 g/mL)
7.6137.11

4saikoside a3.6 ± 0.04
(16.7–167 g/mL)
6.5126.87

5saikoside d1.68 ± 0.05
(21.2–212 g/mL)
2.378.03

Data is expressed as mean ± standard deviation in mg/g of raw herbal materials calculated from three batches.
Inter-batch coefficients of variation (CV) were calculated across three batches of Shuyu preparation.