A Stability-Indicating HPLC-DAD Method for Determination of Ferulic Acid into Microparticles: Development, Validation, Forced Degradation, and Encapsulation Efficiency

Table 3

Accuracy assays for ferulic acid analysis.

Level of concentration	Theoretical concentration	Experimental concentration	Recovery (%)	RSD (%)
	(µg/mL)	(µg/mL)
Low	15	15.11 ± 0.25	100.73	1.65
Medium	45	44.91 ± 0.44	99.80	0.98
High	65	64.36 ± 0.55	99.02	0.85

; RSD = relative standard deviation.