Table 2. Recovery studies of EPE and PAR.

Drug	Conc. of drug added		%Recovery±S.D.*
	µg/mL	%Level
EPE	5	50	100.55±0.65
	10	100	99.76±0.56
	15	150	101.43±0.26
PAR	5	50	99.37±0.34
	10	100	100.72±0.65
	15	150	99.46±0.49
*Mean of three determinations