TABLE 2.

The calibration curve data of reference substance in S. miltiorrhiza root (n = 6).

	Linear range (ng)	Regression equation	r2
DS	0.560∼8.960	y = 11.32557x−0.98662	0.99991
CA	0.168∼4.480	y = 56.20537x−6.85365	0.99996
RA	3.420∼68.400	y = 20.96961x−22.24801	0.99985
Sal B	91.60∼732.80	y = 6.62872x−44.93137	0.99997
Sal A	0.384∼10.240	y = 22.17195x−6.96602	0.99992
DT-I	0.204∼10.880	y = 58.09684x−10.34958	0.99984
TS-I	0.020∼0.672/	y = 72.97334x+1.66830	0.99990
CT	1.470∼78.400	y = 38.68225x−27.81167	0.99999
TS-IIA	0.730∼24.400	y = 63.73954x−29.18675	0.99997