Table 1.

Quantitative analysis of AGNHW.

	Precision	Repeatability	Stability	Recovery	Linear regression equation	Correlation coefficient	Contents in AGNHW
Baicalin	0.69%	1.74%	1.60%	99.61%	y = 6.821x + 28.509	0.9996	12.65 ± 0.35 mg/pill
Berberine	0.64%	0.83%	1.09%	99.74%	y = 21.548x + 91.648	0.9996	8.56 ± 0.25 mg/pill
Geniposide	0.88%	1.38%	1.62%	98.30%	y = 5.6838x + 6.7913	0.9995	13.62 ± 0.47 mg/pill