development and validation of spectrophotometric ...
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development and validation of spectrophotometric ...
Dec 16, 2014 - Development and Validation of Spectrophotometric Method for. Determination of Cefixime and Glimepiride by Ternary Complex Formation with ...
Indo American Journal of Pharmaceutical Research, 2014
ISSN NO: 2231-6876
DEVELOPMENT AND VALIDATION OF SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF CEFIXIME AND GLIMEPIRIDE BY TERNARY COMPLEX FORMATION WITH EOSIN AND CU(II) Ihab M. Almasri , Mohammad K. Al-Laham Department of Chemistry and Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Gaza, Gaza Strip. ARTICLE INFO Article history Received 25/11/2014 Available online 16/12/2014
ABSTRACT A simple, accurate and sensitive UV-Visible spectrophotometric method have been developed and validated for the quantitative determination of cefixime and glimepiride in either pure form or in their dosage forms. The method is based on the formation of a ternary complex with copper(II) and eosin. The method does not involve solvent extraction. Appropriate conditions were examined for the reaction to obtain maximum absorptivity and sensitivity. The color of the produced complex is measured at 550 and 544 nm with apparent molar absorptivities of 1.49 X 104 Lmol-1cm-1 and 1.657 X 104 Lmol-1cm-1 and Sandell's sensitivities of 3.1 X 10-2 and 2.9 X 10-2 µg/cm2 for cefixime and glimepiride, respectively. The method is applicable over concentration range of 4-28 and 5-50 µgmL-1 for cefixime and glimepiride, respectively. The analytical performance of the developed method was fully validated and the results obtained revealed high accuracy (recovery values, 100 ± 1%) and precision (with relative standard deviation
