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Acta Chromatographica
M. Ganesh
B. Thangabalan
R. Patil
D. Thakur
A. Kumar Kumar
M. Vinoba
S. Ganguly
, and
T. Sivakumar


A rapid, simple and validated reversed-phase high-performance liquid chromatographic method has been developed for analysis of oxaprozin in pharmaceutical dosage forms. Oxaprozin was separated on an ODS analytical column with a 45:55 (v/v) mixture of acetonitrile and triethanolamine solution (5 mm, pH 3.5 ± 0.05, adjusted by addition of 85% phosphoric acid) as mobile phase at a flow rate of 2.0 mL min–1. The effluent was monitored by UV detection at 254 nm. Calibration plots were linear in the range 160 to 240 μg mL–1 and the LOD and LOQ were 14.26 and 41.21 μg mL–1, respectively. The high recovery and low relative standard deviation confirm the suitability of the method for routine QC determination of oxaprozin in tablets.

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