Table 3.

Accuracy of HPLC-UV method for determination of andrographolide and dehydroandrographolide.

Analyte	Sample Weight (g)	Original (mg)	Spiked (mg)	Found (mg)	Recovery (%)	Mean Recovery (%)	RSD (%)
Andrographolide	0.1002	1.1373	1.0000	2.2264	108.92	107.02	1.52
	0.1015	1.1520	1.0000	2.2198	106.78
	0.1019	1.1566	1.0000	2.2368	108.02
	0.1023	1.1611	1.0000	2.2070	104.59
	0.1034	1.1736	1.0000	2.2417	106.81
Dehydroandrographolide	0.1002	0.8427	0.8000	1.6436	100.11	98.86	1.46
	0.1015	0.8536	0.8000	1.6423	98.58
	0.1019	0.8570	0.8000	1.6616	100.57
	0.1023	0.8603	0.8000	1.6409	97.57
	0.1034	0.8696	0.8000	1.6491	97.44