ninhydrin

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

于头孢苄所含伯性条件下可与茚三酮发生显色反应,从而建立流动注射分光光度法测定头孢苄的新法。

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

茚三酮反应的测定证明了辐射后的样品中出现了新的化学团——。

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-(5∶2∶1)为展开剂,硅胶G薄层板上展开,用茚三酮的丙酮溶液显色后观察。