A new method for determination of cephalexin based on the color reaction between cephalexin and ninhydrin has been developed.
基于头孢氨苄所氨基在酸性条件下可与茚三发生显色反应,从而建立流动光光度法测定头孢氨苄的新方法。
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This ninhydrin solution reacts with amino acids present in sweat and turns purple due to the formation of Ruhemman's purple.
这种溶液与汗液中的基酸发生反应,由曼紫的形成而变成紫色。
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