Comparison of Pharmacokinetics and Tissue Distribution Characteristics of Three Diterpenoid Esters in Crude and Prepared Semen Euphorbiae

Table 6

Stability of the three analytes in tissue samples of mice.

Analytes	Concentration (ng·mL^−1)	RSD (%)
		At room temperature for 30 min in tissue	At 4°C for 24 h in tissue	After three freeze-thaw cycles in tissue
Euphorbia factor L1	10	3.43	0.81	3.25
	200	1.97	3.06	1.59
	600	0.15	4.33	1.80
Euphorbia factor L2	10	2.38	1.13	7.81
	200	2.05	0.99	1.19
	600	0.71	1.40	2.35
Euphorbia factor L3	10	1.86	3.56	1.41
	200	3.41	1.99	4.68
	600	0.18	1.94	4.06