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	R^2	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