Soybean Milk Inhibits Absorption and Intestinal Transmembrane Transport of Gegen in Rats

Table 5

Summary of stability of puerarin for the UHPLC-MS/MS method in rat plasma ().

		Spiked conc. (ng·mL^−1) of puerarin
		15	100	750
3 freeze-thaw cycles	Precision (RSD%)	14.20	2.84	6.24
	Accuracy (RE%)	−12.22	11.02	13.41
Long-term; (28 days, −20°C)	Precision (RSD%)	8.97	5.71	5.06
	Accuracy (RE%)	−14.09	−0.56	10.58
Postpreparation; (12 h, 20°C)	Precision (RSD%)	14.24	8.12	3.59
	Accuracy (RE%)	14.02	−3.19	11.79
Prepreparation; (12 h, 20°C)	Precision (RSD%)	13.03	1.04	7.29
	Accuracy (RE%)	−10.93	2.42	5.95