Abstract
A thin-layer chromatographic procedure is described for identifying various sulfonamides when present in pharmaceutical combinations. Successful identification has been accomplished for sulfadiazine, sulfamerazine, sulfamethazine, sulfathiazple, sulfacetamide, sulfanilamide, sulfaquinoxaline, and sodium sulfabromomethazine. The critical effect of water in the solvent system and the use of various detection methods, including fluorescent plates and Ehrlich's and Bratton-Marshall's reagent sprays are described. The procedure can be completed within 2 hours.
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