The development of standardized herbal medicine requires one standardisation product contains a chemical compound used as a marker.
Therefore, the method of analysis of the content of the required medicinal plants, one in the analysis of the assay tannin.Determination total amount of tannins done using colorimetric reagents 1.10 phenantrolin and a
solution of iron (III), because it has a better sensitivity value, the reaction happened to running quickly and
specifically so that measurements can be effectively and efficiently