对国内外3种常用的比色法测定荞麦茶中总黄酮含量进行了比较,结果表明,Na NO2-Al Cl3-Na OH显色法是荞麦茶总黄酮含量测定的最适方法,该方法稳定性好,操作简便。
In order to study measuring method of flavonoids in buckwheat tea, three of the most popular colorimetric methods are compared in this study. The results showed that the NaNO2-AlCl3-NaOH colorimetric method is the optimum method to measure flavonoids content of buckwheat tea. And this method was convenient, accurate, and reproducible.