Validated HPTLC Method for Quantification of Luteolin and Apigenin in Premna mucronata Roxb., Verbenaceae

Table 5

Recovery studies of apigenin.

Amount of apigenin in sample (ng)	Amount of standard apigenin added (ng)	Total amount of apigenin taken (ng)	Total amount of apigenin found (ng)	Percent of recovery (%)
131.57	100	231.57	229.91	99.29 ± 1.22
131.57	200	331.57	328.23	98.99 ± 1.21
131.57	300	431.57	421.77	97.72 ± 0.82

Mean of three determinations ± % relative standard deviation.