摘要
本研究建立了紫外-可见分光光度法测定肉苁蓉中多酚类物质(以没食子酸计)含量的方法。当乙醇浓度为70%、温度为60℃、提取时间为30min、料液比为1:20时,肉苁蓉中多酚类物质(以没食子酸计)的提取效果最好。同时肉苁蓉样品中多酚类物质(以没食子酸计)的平均质量百分比为0.2422%。精密度、稳定性和加标回收结果显示该方法可行可靠。
A method for the determination of polyphenols in Cistanche was established by ultraviolet-visible spectrophotom.etry.The results indicate that the extraction rate is best when the concentration of ethanol is 70%;the temperature is 60℃;the extraction time is 30min;the ratio of material to liquid is 1:20.Meanwhile,the average mass percentage of polyphe.nols in Cistanche deserticola samples is 0.2422%.The results of precision,stability and recovery show that the method is feasible and reliable.
作者
张春玲
许新兵
任小娜
Zhang Chun-ling;Xv Xin-bing;Ren Xiao-na(Jiuquan Vocational Technical College,Jiuquan,Gansu 735000,China)
出处
《福建分析测试》
CAS
2019年第2期52-57,共6页
Fujian Analysis & Testing
