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Table 3 Calibration curves

From: The comparison of extraction methods of ganjiang decoction based on fingerprint, quantitative analysis and pharmacodynamics

Standard substance Linear relation R2 Liner range (μg/mL)
Ferulic acid Y = 27206A − 196.23 0.9998 1.5625–100
Gallic acid Y = 21630A + 39131 0.9999 6.25–200
Ellagic acid Y = 117421A − 430228 0.9991 6.25–200
Palmatine Y = 55675A − 70760 0.9994 3.125–200
Berberine Hydrochloride Y = 13098A − 10110 0.9999 3.125–200
Zingerone Y = 17424A − 6111.8 0.9984 0.3125–20
Ligustilide Y = 1437.8A − 1206.1 0.9997 1.5625–100
  1. Y was the corresponding peak area, and A was the concentration