Determination of Mefenamic Acid in Pharmaceutical Drugs and Wastewater by RP-HPLC
This study presents a chromatographic analysis method for the determination of mefenamic acid in pharmaceutical preparations and treated wastewater from the pharmaceutical industry in East Asia and specifically (Syria). An isocratic RP-HPLC method has been developed for determination of Mefenamic acid on a Grace, alltima C18 column (250 x 4.6 mm, 5.0 μm) using a mobile phase consisting of (1%) Triethylamine aqueous buffer adjust pH = 2 by H3PO4 (85%): Methanol: Acetonitrile); (35: 20: 45 v\v\v %) at a flow rate of 2 mL/min. Detection was carried out at 220 nm. Retention time of Mefenamic acid was 7.85 ( ± 0.36) mins. The method was validated with respect to specificity, linearity, accuracy, precision, ruggedness, and robustness. The proposed method is simple, precise, sensitive, and reproducible and is applicable for quantification of Mefenamic acid in Tablets formulations and Wastewater developed and formulated in our laboratory.