Research Article
Antimicrobial and Immunomodulatory Activity of Herb Extracts Used in Burn Wound Healing: “San Huang Powder”
Table 5
HPLC calibration curves of reference compounds, including regression equations, coefficients of determination (R2), and calibration ranges.
| Reference compound | Regression equation | R2 | Calibration range | Mass percentage (%) |
| Chrysophanol in Rhubarb | y = 37412x + 8906.3 | 0.999 | 0.15–5 μg | 0.47 | Chrysin in Scutellaria root | y = 1951500x − 96365 | 0.998 | 0.1–10 μg | 0.37 | Berberine chloride in Phellodendron bark | y = 48857x + 672075 | 0.999 | 1.25–40 μg | 1.06 | Berberine chloride in Coptidis rhizome | y = 42135x + 151920 | 0.996 | 0.5–10 μg | 2.14 |
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