Analytical Method for the Validation of Three Polyphenols as a Marker Compound for the Standardization of Solidago virgaurea subsp. gigantea Extracts and Antiadipogenesis of Harvesting Time and Location

Table 3

Recovery of protocatechuic acid, chlorogenic acid, and kaempferol-3-O-rutinoside.

Analyte compounds	Theoretical; (μg/ml)	Found; (, μg/ml)	RSD (%)	Recovery; (, %)
Protocatechuic acid (PC)	4.85		0.87
	9.70		0.21
	48.50		0.12
Chlorogenic acid (CA)	47.50		0.07
	95.00		0.39
	475.00		0.14
Kaempferol-3-O-rutinoside (K-O-R)	8.5		0.34
	42.5		0.18
	85		0.29