Summary
A thin-layer chromatographic procedure for the quantitative determination of cephalexin in cephradine formulations is described. The thin-layer chromatography is carried out on a silica gel layer and the quantitation is by UV scanning of the chromatogram. The procedure was transferred to high-performance liquid chromatography on a microparticulate silica gel column with a similar eluent system. The cephalexin content of a few commercial cephradine samples is determined by using these techniques. The results of these procedures are compared to those obtained with high-performance liquid chromatography on a C 18 reverse phase column.
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Crombez, E., Bens, G.A., Van der Weken, G. et al. Application of thin layer and high performance liquid chromatography to the separation and determination of cephalexin in cephradine, in bulk powder and in pharmaceuticals. Chromatographia 11, 653–657 (1978). https://doi.org/10.1007/BF02269000
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DOI: https://doi.org/10.1007/BF02269000