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Table 1 The contents of six standard chemicals of EXD in three injections of EXD-S and EXD-C

From: Comparison of chemical profiles and effectiveness between Erxian decoction and mixtures of decoctions of its individual herbs: a novel approach for identification of the standard chemicals

Injection Mangiferin (mg/g) Ferulic acid (mg/g) Icariin (mg/g) Jatrorrhizine (mg/g) Palmatine (mg/g) Berberine (mg/g)
EXD-S1 1.368 0.4871 1.731 0.1004 1.083 1.615
EXD-S2 1.371 0.4896 1.744 0.1010 1.090 1.617
EXD-S3 1.382 0.4996 1.745 0.1014 1.092 1.628
Mean 1.374 0.4921 1.740 0.1010 1.089 1.620
RSD (%) 0.57 1.34 0.46 0.48 0.46 0.43
EXD-C1 0.6581 0.1983 1.498 0.02865 0.03577 1.000
EXD-C2 0.6610 0.1980 1.493 0.03009 0.03661 1.001
EXD-C3 0.6583 0.2034 1.479 0.02947 0.03592 1.003
Mean 0.6591 0.1999 1.490 0.02940 0.03610 1.001
RSD (%) 0.24 1.53 0.65 2.45 1.23 0.17
Mean ratio 2.085 2.462 1.168 3.435 30.17 1.618
  1. The results are expressed as mg or chemicals per g of EXD extract. RSD values were calculated for each chemical from three injections and the mean ratio represents the ratio of amount of chemicals in EXD-S to that of EXD-C