Standardization of the ethanolic extract of Crinum latifolium leaves by two bioactive markers with antiproliferative activity against TGF-β-promoted prostate stromal cells (WPMY-1)

Table 6 Accuracy test results for lycorine and 6α-hydroxybuphanidrine

	Exp	Sample concentration (µg/mL)	Added concentration (µg/mL)	Measured concentration (µg/mL)	Recovery (%) ± SD^a	%RSD^b
Lycorine	1	22.32	10.00	32.09	97.68 ± 1.35	1.387
	2	22.32	20.00	42.56	101.21 ± 0.96	0.953
	3	22.32	40.00	64.52	105.51 ± 1.41	1.334
6α-Hydroxy-buphanidrine	1	18.55	10.00	28.15	95.99 ± 1.49	1.556
	2	18.55	20.00	37.18	94.24 ± 1.28	1.358
	3	18.55	40.00	56.07	93.81 ± 0.88	0.811

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