Recovery studies of OXY and PMB by HPLC method

DrugsNominal concentration (μg/mL)Level of addition (%)Concentration prepared (μg/mL)Amount recovered (μg/mL)RSD (%)Recovery (%)
OXY108087.551.6394.41
10100109.441.2795.6
101201211.531.1497.25
PMB108087.441.6794.62
10100109.471.3496.2
101201211.71.2799.08