Comparative Pharmacokinetic Study of 5 Active Ingredients after Oral Administration of Zuogui Pill in Osteoporotic Rats with Different Syndrome Types

Table 3

Calibration curves, correlation coefficients, linear ranges, and LLOQs of 5 compounds.

Compounds	Calibration curves	Correlation coefficients (r)	Linear range (ng/mL)	LLOQ (ng/mL)
Chlorogenic acid	y = 0.0226x − 0.0985	0.9997	1–1000	1
Loganin	y = 0.0023x + 0.0297	0.9996	20–20000	20
Morroniside	y = 0.0114x + 0.1404	0.9993	4–4000	4
Aucubin	y = 0.0016x − 0.0175	0.9990	0.5–500	0.5
Protocatechuic aldehyde	y = 0.1696x + 2.2261	0.9992	0.05–50	0.05