Simultaneous Determination of Catalpol, Aucubin, and Geniposidic Acid in Different Developmental Stages of Rehmannia glutinosa Leaves by High Performance Liquid Chromatography

Table 3

Validation of the optimized HPLC-UV conditions for three analytes.

Iridoid	Calibration curve	Correlation ()	Precision; (RSD%)	Reproducibility; (RSD%)	Stability; (RSD%)	Recovery; (%)	LLOD; (mg/mL)
Catalpol		0.9997	0.14	0.25	1.46	102.59
Aucubin		0.9999	2.65	3.08	2.38	98.29
GPA		0.9996	2.05	2.41	0.43	101.96