Chemical Constituents from Daphne giraldii Nitsche and Their Contents Simultaneous Determination by HPLC

Table 1

Linear relation between peak area and concentration.

Compound	Regression equation		Linear range (mg/mL)
1		0.9996	0.0025–0.05
2		0.9998	0.02–0.5
3		0.9988	0.005–0.1
4		0.9984	0.025–0.55