New simple sensitive spectrophotometric methods are developed for determination of cefepime (CFM) in pure and Pharmaceutical Formulations. The first method conversion primary amine to azo-dye by react cefepime with sodium nitrite and hydrochloric acid followed by coupling with 2,6-dimethylphenol in alkaline medium to obtain a stable reddish-orange colored dye at λ max 515nm. The concentration ranges 2-50 μg / mL, Beer's law is obeyed, correlation coefficient was 0.9996, molar absorptivity was 0.826×10 4 L.mol -1 .cm -1 and the detection limit was 0.192 μg/mL. Cloud point extraction (CPE) second method to estimation a trace amount in aqueous solution product from diazotization and measuring with a UV-visible spectrophotometer at λ max 515 nm. The concentration range obeyed the Beer's law was 0.25-10 μg / mL, correlation coefficient was 0.9997, molar absorptivity was 1.169×10 5 L.mol -1 .cm -1 , detection limit was 0.027 μg/mL, Pre-concentration factor was 25 and Distribution coefficient(D) was 332.35. Last methods flow injection analysis it's simple for estimation the cefepime .The concentration ranges 1-150 μg / mL, Beer's law is obeyed, correlation coefficient was 0.9997, molar absorptivity was 0.341×10 4 L.mol -1 .cm -1 and the detection limit was 0.464μg/mL. The proposed methods were successfully, applied to the determination cefepime in pharmaceutical formulation.
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