Simultaneous Determination of Potassium Clavulanate and Cefixime in Synthetic Mixtures by High-Performance Liquid Chromatography

Author:

Khan Islam Ullah1,Sharif Shahzad1,Ashfaq Muhammad1,Asghar Muhammad Nadeem1

Affiliation:

1. Government College University, Faculty of Science, Department of Chemistry, Lahore-54000, Pakistan

Abstract

Abstract A simple, precise, and sensitive high-performance liquid chromatographic method was developed and validated for the simultaneous determination of potassium clavulanate and cefixime in synthetic mixture form. The analytes were separated on a C18 column by using 0.03 M disodium hydrogen phosphate buffer (pH 6.5)methanol (84 + 16, v/v) as the mobile phase with detection at 220 nm. The method exhibited high sensitivity and good linearity in the concentration ranges of 12.562.5 and 20100 g/mL for potassium clavulanate and cefixime, respectively. The total run time for the 2 components was <8 min, and the average recovery was >101.5 with a relative standard deviation of <1.0. The proposed method was validated according to guidelines of the International Conference on Harmonization by evaluation of linearity, recovery, selectivity, robustness, limits of detection and quantitation, and within- and between-day precision. The results obtained for the synthetic mixture show that the method is highly precise and accurate for the simultaneous determination of potassium clavulanate and cefixime.

Publisher

Oxford University Press (OUP)

Subject

Pharmacology,Agronomy and Crop Science,Environmental Chemistry,Food Science,Analytical Chemistry

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