Skip to main content

Advertisement

Table 2 Precision and recovery for the developed HPLC method

From: Antioxidant activity and components of a traditional chinese medicine formula consisting of Crataegus pinnatifida and Salvia miltiorrhiza

Analyte Precision Recovery
  Intra-day variability RSD (%) Inter-day variability RSD (%) Average (%) RSD (%)
Danshensu sodium 3.33 3.77 98.77 1.64
Protocatechuic aldehyde 3.37 3.82 97.74 1.99
Rosmarinic acid 3.29 3.23 100.22 2.32
Lithospermic acid 2.57 2.61 101.21 1.32
Salvianolic B 3.48 0.73 103.38 3.34
Salvianolic A 3.27 3.45 99.19 2.56
Procyanidin B2 2.27 2.82 100.00 5.40
(−)-Epicatechin 2.57 2.54 98.85 5.91