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Analysis of cefadroxil by micellar electrokinetic capillary chromatography: development and validation
Y M Li1, D Vanderghinste, D Pecanac
1Laboratorium voor Farmaceutische Chemie en Analyse van Geneesmiddelen, Faculteit Farmaceutische Wetenschappen, K.U. Leuven, Belgium.
Electrophoresis
|December 31, 1998
Summary
A new micellar electrokinetic capillary chromatography method effectively separates the antibiotic cefadroxil from related substances in under 15 minutes. This validated technique offers precise analysis for cefadroxil quality control.
Area of Science:
- Analytical Chemistry
- Pharmaceutical Analysis
Background:
- Accurate quantification of antibiotics like cefadroxil is crucial for pharmaceutical quality control.
- Existing analytical methods may lack the efficiency or specificity required for complex sample matrices.
Purpose of the Study:
- To develop and validate a novel micellar electrokinetic capillary chromatography (MECC) method for cefadroxil analysis.
- To achieve rapid and complete separation of cefadroxil from its known related substances.
Main Methods:
- Micellar electrokinetic capillary chromatography (MECC) was employed.
- Separation was optimized using an acetate buffer (50 mM, pH 5.25) with sodium dodecyl sulfate (SDS; 110 mM).
- Method validation included linearity, precision, limit of detection, and limit of quantitation assessments.
Main Results:
- Complete separation of cefadroxil from ten related substances was achieved within 15 minutes.
- The method demonstrated good linearity, precision, and sensitivity.
- Robustness was confirmed using a full-fraction factorial design.
Conclusions:
- The developed MECC method is efficient, rapid, and suitable for the analysis of cefadroxil.
- This validated technique provides a reliable tool for pharmaceutical quality control and impurity profiling.