The color reaction of Cadion 2B with silver(I) was studied.

研究了镉试剂2B固相萃取测定银的方法。

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,从而建立流动注射分光光度法测定头孢氨苄的新方法。

And the chemical constituents of Stachys geobombycis was primarily demonstrated according to precipitadon reaction or color reaction with various indicator.

地蚕中可能含有生物碱、黄酮及其苷类、多糖、有机酸等成分。