Table 4.

Accuracy and precision of TP and PF in plasma (n = 6).

Analyses	Spiked concentration (ng·mL−1)	Intraday			Interday
		Found concentration (mean ± SD)	Precision (RSD, %)	Accuracy (RE, %)	Found concentration (mean ± SD)	Precision (RSD, %)	Accuracy (RE, %)
Triptolide	15	13.25 ± 0.74	5.62	−11.66	14.01 ± 0.74	5.31	−6.59
	50	55.91 ± 6.64	11.87	11.82	56.36 ± 2.21	3.92%	12.71
	400	376.67 ± 37.69	10.01	−5.83	386.97 ± 37.69	9.74	−3.26
Paeoniflorin	300	302.48 ± 19.80	6.55	0.83	303.40 ± 22.21	7.32	1.13
	10000	10513.17 ± 1088.58	10.35	5.13	10488.17 ± 1066.05	10.16	4.88
	90000	89246.50 ± 9568.47	10.72	−0.84	87496.50 ± 10240.51	11.70	−2.78