Results The content of sucrose solutions with different ratio of ethanol (1:1,1:2) was detected by the anthrone-sulfuric acid colorimetry method.
结果纯化水：乙醇比例为1：1，1：2时可用蒽酮-硫酸法测其中蔗糖含量；
3
METHODS: The contents of total alkaloids, diester diterpenoid alkaloids and polysaccharides were measured by acid dye colorimetry, HPLC and sulphuric acid-anthrone colorimetric method respectively.