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Reverse phase HPLC method for determination of aceclofenac and paracetamol in tablet dosage form

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A simple, precise, accurate, and validated reverse phase HPLC method has been developed for the simultaneous estimation of aceclofenac and paracetamol in tablet by reverse phase C-18 column (Intersile 4.6 mmx25 cm, 10 μm) using acetonitrile: 50 mM NaH 2 PO 4 in a ratio of 65:35 (pH adjusted to 3.0 with orthophosphoric acid) as a mobile phase at a flow rate of 1.5 ml/min and detection at 276 nm. The retention time for aceclofenac and paracetamol was found to be 1.58 and 4.01 min respectively, and recoveries from tablet were between 99 and 101%. The method can be used for estimation of combination of these drugs in tablets.


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