ninhydrin

1.A new method for determination of cephalexin based on the color reaction between cephalexin and ninhydrin has been developed.

基于头孢氨苄所含伯氨基在酸性条件下可与茚三酮发生显色反应,从而建注射分光光度法测定头孢氨苄新法。

2.-NH 2 group is proved to be produced by N + ion beam with the analysis of quite sensitive ninhydrin reaction.

茚三酮反应测定证明了辐射后中出现了新化学基团——氨基。

3.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。