A new method for determination of cephalexin based on the color reaction between cephalexin and ninhydrin has been developed.
基于孢氨苄所含伯氨基在酸性条件下可与茚三酮发生显色反,从而建立流动注射分光光度法孢氨苄新法。
A new method for determination of cephalexin based on the color reaction between cephalexin and ninhydrin has been developed.
基于孢氨苄所含伯氨基在酸性条件下可与茚三酮发生显色反,从而建立流动注射分光光度法孢氨苄新法。
-NH 2 group is proved to be produced by N + ion beam with the analysis of quite sensitive ninhydrin reaction.
茚三酮反证明了辐射后样品中出现了新化学基团——氨基。
MethodsExpanding reagent: butanol-water-acetic acid glacial(5∶2∶1),stationary phase: G silicon gel and colorate reagent: dissolve ninhydrin in acetone.
法以正丁醇-水-冰醋酸(5∶2∶1)为展开剂,在硅胶G薄层板上展开,用茚三酮丙酮溶液显色后观察。
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