Simultaneous Determination of Crypto-Chlorogenic Acid, Isoquercetin, and Astragalin Contents in Moringa oleifera Leaf Extracts by TLC-Densitometric Method

Table 3

Recovery studies of crypto-chlorogenic acid, isoquercetin, and astragalin.

Compound	Serial number	Theoretical value (ng)	Amount found* (ng)	Recovery*(%)
Crypto-chlorogenic acid	1	383.47	370.52±8.60	98.67±1.17
	2	393.06	392.69±7.15	99.75±2.75
	3	403.38	402.07±7.89	97.79±3.23
Average				98.73
Isoquercetin	1	325.82	317.49±5.51	98.73±1.74
	2	335.11	328.92±3.92	97.68±1.65
	3	343.64	341.02±3.00	98.43±0.89
Average				98.28
Astragalin	1	287.89	288.21±4.59	100.04±0.90
	2	298.45	298.68±2.74	99.60±1.16
	3	279.59	276.14±6.82	99.32±2.92
Average				99.65

∗Expressed as mean ± SD (n = 3).