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Table 5 Stability and recovery of seven analytes

From: Chemical fingerprinting and quantitative constituent analysis of Siwu decoction categorized formulae by UPLC-QTOF/MS/MS and HPLC-DAD

Analytes Stability (RSD,%; n = 6) Recovery (%; n = 6)
A B C D E SWD THSWD XFSWD SFZYD QLSWD
Mean RSD (%) Mean RSD (%) Mean RSD (%) Mean RSD (%) Mean RSD (%)
Gallic acid 6.36 3.34 7.13 5.16 1.03 98.1 2.71 98.9 1.32 97.8 2.32 101.2 3.12 99.7 1.44
Protocatechuic acid 5.79 5.46 6.18 4.0 4.62 101.2 3.32 99.8 1.43 97.6 1.18 103.7 3.54 102.7 1.98
Vanillic acid 3.14 3.68 6.25 8.80 2.19 96.2 1.39 97.3 1.79 102.3 1.25 92.2 2.81 103.1 2.32
Caffeic acid 6.61 5.10 8.50 2.47 7.87 103.8 1.48 95.8 3.24 98.3 2.50 98.6 2.44 98.2 3.16
Paeoniflorin 6.13 3.79 7.37 8.36 4.07 97.1 3.25 98.2 2.77 95.4 1.15 94.0 1.36 95.8 2.17
Ferulic acid 4.54 3.74 1.31 7.65 2.10 99.7 1.22 103.2 1.94 99.3 1.43 97.5 2.65 104.6 1.89
Senkyunolide I 6.87 2.82 2.47 8.91 4.07 96.9 2.31 98.1 2.13 98.1 2.86 94.0 1.91 98.1 2.34