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AUTOMATIC POTENTIOMETERIC DETERMINATION OF SOME THIRD GENERATION CEPHALOSPORIN'S ANTIBIOTICS
Elgendy Kh., Turkey A. and Fadel S.
ABSTRACT
A rapid potentiometeric method was suggested for determination of micro amounts of a number of third generation cephalosporin in pure as well as in commercial samples. The method based on oxidation of (cefoperazone, ceftazidime, cefotaxime, ceftriaxone) with iodate in acidic medium. An excess of iodate solution was added to different concentration samples of each drug in sulfuric acid medium of (pH= 2-3) with heating for few minutes, followed by boiling for another 5 minutes to expel iodine. The un reacted amount of iodated was determined potentiomery by back titration with Hg(II) using Ag Keywords: Potentiometric titration, cephlosporines, potassium iodate, back titration, pharmaceutical samples. [Download Article] [Download Certifiate] |