Fig. 2

HPLC chromatogram showing simultaneous separation of PAR (200 μg/mL), RIV (200 μg/mL) and DEX (200 μg/mL) in pure form in presence of Diclofenac sodium (25 μg/mL), as an internal standard at 254.0. nm.

HPLC chromatogram showing simultaneous separation of PAR (200 μg/mL), RIV (200 μg/mL) and DEX (200 μg/mL) in pure form in presence of Diclofenac sodium (25 μg/mL), as an internal standard at 254.0. nm.