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Table 5 The accuracy (intra- and inter-day) (n = 5), precision (n = 5), extract recovery (n = 5) and stability (n = 3) for 3 components in rabbits plasma

From: Preparation, optimization and in vitro–in vivo evaluation of Shunxin sustained release granules

Components Concentration (μg/mL) Accuracy (RSD%) Precision (%) Extract recovery (%) Stability (RSD%)
Inter-day Intra-day At − 20 °C 7 days Freeze–thaw cycles
Paeoniflorin Low 5.68 4.13 102.03 89.68 5.52 6.15
Medium 2.47 2.78 103.47 94.07 3.37 6.90
High 3.36 6.31 98.79 95.99 4.17 8.25
Calycosin-7-glucoside Low 4.84 7.25 105.68 86.90 5.28 7.90
Medium 4.08 5.57 88.53 89.91 5.57 6.53
High 6.33 7.44 98.33 91.33 5.69 7.14
Ferulic acid Low 2.38 7.84 86.56 79.90 3.24 8.09
Medium 3.10 2.24 96.05 82.08 4.24 6.87
High 5.68 8.76 97.26 84.66 7.09 8.40