TABLE 4.

The recovery test results of specnuezhenide.

Group	Sample content (mg)	Addition content (mg)	Measured content (mg)	Measured addition content (mg)	Recovery (%)	Average recovery (%)	RSD (%)
Low	0.3950	0.3164	0.7056	0.3106	98.17	99.35	1.66
	0.3950	0.3164	0.7071	0.3121	98.65
	0.3950	0.3164	0.7153	0.3203	101.23
Medium	0.3950	0.3955	0.7925	0.3975	100.50	100.59	0.26
	0.3950	0.3955	0.7920	0.3970	100.39
	0.3950	0.3955	0.7940	0.3990	100.88
High	0.3950	0.4746	0.8502	0.4552	95.92	95.34	1.22
	0.3950	0.4746	0.8511	0.4561	96.10
	0.3950	0.4746	0.8411	0.4461	94.00