摘要
以五倍子为原料浸取单宁酸 ,由单宁酸氧化制备鞣花酸。选用 Na2 CO3 作添加剂 ,降低单宁酸的浓度 ,增长反应时间 ,鞣花酸的产率可高达 54 %。采用红外光谱 ( IR)法和高效液相色谱法 ( HPLC)
The ellagic acid has been prepared by oxidation of the leaching solution of Chinese gallnut containing tannic acid. Using Na 2CO 3 as additive,the productivity of ellagic acid is as high as 54 % by reducing the concentration of tannic acid and prolonging oxidation period. Ellagic acid has been analyzed by infrared spectra and the purity has been determined by high performance liquid chromatography.
出处
《青岛化工学院学报（自然科学版）》
2002年第3期8-11,共4页
Journal of Qingdao Institute of Chemical Technology(Natural Science Edition)
