ANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF CEFIXIME AND OFLOXACIN IN TABLETS BY RP-HPLC METHOD

A chromatographic method has been developed as per ICH norms for the simultaneous estimation of cefixime and ofloxacin from pharmaceutical formulations. The method was carried out on a column -Gemini (250 x. 4.6, 5 mc) with a mobile phase consisting of 0.2 M potassium dihydrogen phosphate buffer (adjusted to pH 7 with 1 % w/w triethylamine), acetonitrile and methanol in 70:20:10 ratio and filtered through 0.45 mc cellulose nitrate filters. The flow rate 1.0 mL/min. Detection was carried out at 288 nm. The retention time of CEF and OFL was 2.16 and 7.86 min respectively. The developed method was validated in terms of accuracy, precision, linearity, limit of detection, limit of quantification and solution stability. The proposed method can be used for the estimation of these drugs in combined dosage forms.